v4.3.0

feat(hub): add optional TLS certificate/key support to hub start config and bridge
v4.2.0
2026-02-26 23:47:16 +00:00 · 2026-02-26 23:47:16 +00:00 · 2026-02-26 23:02:23 +00:00 · 2026-02-26 23:02:23 +00:00 · 2026-02-26 17:39:40 +00:00 · 2026-02-26 17:39:40 +00:00
17 changed files with 1952 additions and 331 deletions
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,85 @@
 # Changelog

+## 2026-02-26 - 4.3.0 - feat(hub)
+add optional TLS certificate/key support to hub start config and bridge
+
+- TypeScript: add tls.certPem and tls.keyPem to IHubConfig and include tlsCertPem/tlsKeyPem in startHub bridge command when both are provided
+- TypeScript: extend startHub params with tlsCertPem and tlsKeyPem and conditionally send them
+- Rust: change HubConfig serde attributes for tls_cert_pem and tls_key_pem from skip to default so absent PEM fields deserialize as None
+- Enables optional provisioning of TLS certificate and key to the hub when provided from the JS side
+
+## 2026-02-26 - 4.2.0 - feat(core)
+expose edge peer address in hub events and migrate writers to channel-based, non-blocking framing with stream limits and timeouts
+
+- Add peerAddr to ConnectedEdgeStatus and HubEvent::EdgeConnected and surface it to the TS frontend event (management:edgeConnected).
+- Replace Arc<Mutex<WriteHalf>> writers with dedicated mpsc channel writer tasks in both hub and edge crates to serialize writes off the main tasks.
+- Use non-blocking try_send for data frames to avoid head-of-line blocking and drop frames with warnings when channels are full.
+- Introduce MAX_STREAMS_PER_EDGE semaphore to limit concurrent streams per edge and reject excess opens with a CLOSE_BACK frame.
+- Add a 10s timeout when connecting to SmartProxy to avoid hanging connections.
+- Ensure writer tasks are aborted on shutdown/cleanup and propagate cancellation tokens appropriately.
+
+## 2026-02-26 - 4.1.0 - feat(remoteingress-bin)
+use mimalloc as the global allocator to reduce memory overhead and improve allocation performance
+
+- added mimalloc = "0.1" dependency to rust/crates/remoteingress-bin/Cargo.toml
+- registered mimalloc as the #[global_allocator] in rust/crates/remoteingress-bin/src/main.rs
+- updated Cargo.lock with libmimalloc-sys and mimalloc package entries
+
+## 2026-02-26 - 4.0.1 - fix(hub)
+cancel per-stream tokens on stream close and avoid duplicate StreamClosed events; bump @types/node devDependency to ^25.3.0
+
+- Add CancellationToken to per-stream entries so each stream can be cancelled independently.
+- Ensure StreamClosed event is only emitted when a stream was actually present (guards against duplicate events).
+- Cancel the stream-specific token on FRAME_CLOSE to stop associated tasks and free resources.
+- DevDependency bump: @types/node updated from ^25.2.3 to ^25.3.0.
+
+## 2026-02-19 - 4.0.0 - BREAKING CHANGE(remoteingress-core)
+add cancellation tokens and cooperative shutdown; switch event channels to bounded mpsc and improve cleanup
+
+- Introduce tokio-util::sync::CancellationToken for hub/edge and per-connection/stream cancellation, enabling cooperative shutdown of spawned tasks.
+- Replace unbounded mpsc channels with bounded mpsc::channel(1024) and switch from UnboundedSender/Receiver to Sender/Receiver; use try_send where non-blocking sends are appropriate.
+- Wire cancellation tokens through edge and hub codepaths: child tokens per connection, per-port, per-stream; cancel tokens in stop() and Drop impls to ensure deterministic task termination and cleanup.
+- Reset stream id counters and clear listener state on reconnect; improved error handling around accept/read loops using tokio::select! and cancellation checks.
+- Update Cargo.toml and Cargo.lock to add tokio-util (and related futures entries) as dependencies.
+- BREAKING: public API/types changed — take_event_rx return types and event_tx/event_rx fields now use bounded mpsc::Sender/mpsc::Receiver instead of the unbounded variants; callers must adapt to the new types and bounded behavior.
+
+## 2026-02-18 - 3.3.0 - feat(readme)
+document dynamic port assignment and runtime port updates; clarify TLS multiplexing, frame format, and handshake sequence
+
+- Adds documentation for dynamic port configuration: hub-assigned listen ports, hot-reloadable via FRAME_CONFIG frames
+- Introduces new FRAME type CONFIG (0x06) and describes payload as JSON; notes immediate push of port changes to connected edges
+- Clarifies that the tunnel is a single encrypted TLS multiplexed connection to the hub (preserves PROXY v1 behavior)
+- Specifies frame integer fields are big-endian and that stream IDs are 32-bit unsigned integers
+- Adds new events: portsAssigned and portsUpdated, and updates examples showing updateAllowedEdges usage and live port changes
+
+## 2026-02-18 - 3.2.1 - fix(tests)
+add comprehensive unit and async tests across Rust crates and TypeScript runtime
+
+- Added IPC serialization tests in remoteingress-bin (IPC request/response/event)
+- Added serde and async tests for Edge and Handshake configs and EdgeEvent/EdgeStatus in remoteingress-core (edge.rs)
+- Added extensive Hub tests: constant_time_eq, PROXY header port parsing, serde/camelCase checks, Hub events and async TunnelHub behavior (hub.rs)
+- Added STUN parser unit tests including XOR_MAPPED_ADDRESS, MAPPED_ADDRESS fallback, truncated attribute handling and other edge cases (stun.rs)
+- Added protocol frame encoding and FrameReader tests covering all frame types, payload limits and EOF conditions (remoteingress-protocol)
+- Added TypeScript Node tests for token encode/decode edge cases and RemoteIngressHub/RemoteIngressEdge class basics (test/*.node.ts)
+
+## 2026-02-18 - 3.2.0 - feat(remoteingress (edge/hub/protocol))
+add dynamic port configuration: handshake, FRAME_CONFIG frames, and hot-reloadable listeners
+
+- Introduce a JSON handshake from hub -> edge with initial listen ports and stun interval so edges can configure listeners at connect time.
+- Add FRAME_CONFIG (0x06) to the protocol and implement runtime config updates pushed from hub to connected edges.
+- Edge now applies initial ports and supports hot-reloading: spawn/abort listeners when ports change, and emit PortsAssigned / PortsUpdated events.
+- Hub now stores allowed edge metadata (listen_ports, stun_interval_secs), sends handshake responses on auth, and forwards config updates to connected edges.
+- TypeScript bridge/client updated to emit new port events and periodically log status; updateAllowedEdges API accepts listenPorts and stunIntervalSecs.
+- Stun interval handling moved to use handshake-provided/stored value instead of config.listen_ports being static.
+
+## 2026-02-18 - 3.1.1 - fix(readme)
+update README: add issue reporting/security section, document connection tokens and token utilities, clarify architecture/API and improve examples/formatting
+
+- Added an 'Issue Reporting and Security' section linking to community.foss.global for bug/security reports and contributor onboarding.
+- Documented connection tokens: encodeConnectionToken/decodeConnectionToken utilities, token format (base64url), and examples for hub and edge provisioning.
+- Clarified Hub/Edge usage and examples: condensed event handlers, added token-based start() example, and provided explicit config alternative.
+- Improved README formatting: added emojis, rephrased architecture descriptions, fixed wording and license path capitalization, and expanded example scenarios and interfaces.
+
 ## 2026-02-17 - 3.1.0 - feat(edge)
 support connection tokens when starting an edge and add token encode/decode utilities

--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@serve.zone/remoteingress",
-  "version": "3.1.0",
+  "version": "4.3.0",
  "private": false,
  "description": "Edge ingress tunnel for DcRouter - accepts incoming TCP connections at network edge and tunnels them to DcRouter SmartProxy preserving client IP via PROXY protocol v1.",
  "main": "dist_ts/index.js",
@@ -9,7 +9,7 @@
  "author": "Task Venture Capital GmbH",
  "license": "MIT",
  "scripts": {
-    "test": "(tstest test/ --web)",
+    "test": "(tstest test/ --verbose --logfile --timeout 60)",
    "build": "(tsbuild tsfolders --allowimplicitany && tsrust)",
    "buildDocs": "(tsdoc)"
  },
@@ -20,7 +20,7 @@
    "@git.zone/tsrust": "^1.3.0",
    "@git.zone/tstest": "^3.1.8",
    "@push.rocks/tapbundle": "^6.0.3",
-    "@types/node": "^25.2.3"
+    "@types/node": "^25.3.0"
  },
  "dependencies": {
    "@push.rocks/qenv": "^6.1.3",
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -34,8 +34,8 @@ importers:
        specifier: ^6.0.3
        version: 6.0.3(socks@2.8.7)
      '@types/node':
-        specifier: ^25.2.3
-        version: 25.2.3
+        specifier: ^25.3.0
+        version: 25.3.0

 packages:

@@ -1501,8 +1501,8 @@ packages:
  '@types/node@22.19.11':
    resolution: {integrity: sha512-BH7YwL6rA93ReqeQS1c4bsPpcfOmJasG+Fkr6Y59q83f9M1WcBRHR2vM+P9eOisYRcN3ujQoiZY8uk5W+1WL8w==}

-  '@types/node@25.2.3':
-    resolution: {integrity: sha512-m0jEgYlYz+mDJZ2+F4v8D1AyQb+QzsNqRuI7xg1VQX/KlKS0qT9r1Mo16yo5F/MtifXFgaofIFsdFMox2SxIbQ==}
+  '@types/node@25.3.0':
+    resolution: {integrity: sha512-4K3bqJpXpqfg2XKGK9bpDTc6xO/xoUP/RBWS7AtRMug6zZFaRekiLzjVtAoZMquxoAbzBvy5nxQ7veS5eYzf8A==}

  '@types/parse5@6.0.3':
    resolution: {integrity: sha512-SuT16Q1K51EAVPz1K29DJ/sXjhSQ0zjvsypYJ6tlwVsRV9jwW5Adq2ch8Dq8kDBCkYnELS7N7VNCSB5nC56t/g==}
@@ -3986,8 +3986,8 @@ packages:
  undici-types@6.21.0:
    resolution: {integrity: sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==}

-  undici-types@7.16.0:
-    resolution: {integrity: sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==}
+  undici-types@7.18.2:
+    resolution: {integrity: sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==}

  unified@11.0.5:
    resolution: {integrity: sha512-xKvGhPWw3k84Qjh8bI3ZeJjqnyadK+GEFtazSfZv/rKeTkTjOJho6mFqh2SM96iIcZokxiOpg78GazTSg8+KHA==}
@@ -5178,7 +5178,7 @@ snapshots:
      '@jest/schemas': 29.6.3
      '@types/istanbul-lib-coverage': 2.0.6
      '@types/istanbul-reports': 3.0.4
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      '@types/yargs': 17.0.35
      chalk: 4.1.2

@@ -6736,14 +6736,14 @@ snapshots:

  '@types/accepts@1.3.7':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/babel__code-frame@7.27.0': {}

  '@types/body-parser@1.19.6':
    dependencies:
      '@types/connect': 3.4.38
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/buffer-json@2.0.3': {}

@@ -6760,17 +6760,17 @@ snapshots:

  '@types/clean-css@4.2.11':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      source-map: 0.6.1

  '@types/co-body@6.1.3':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      '@types/qs': 6.14.0

  '@types/connect@3.4.38':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/content-disposition@0.5.9': {}

@@ -6781,11 +6781,11 @@ snapshots:
      '@types/connect': 3.4.38
      '@types/express': 5.0.6
      '@types/keygrip': 1.0.6
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/cors@2.8.19':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/debounce@1.2.4': {}

@@ -6797,7 +6797,7 @@ snapshots:

  '@types/express-serve-static-core@5.1.1':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      '@types/qs': 6.14.0
      '@types/range-parser': 1.2.7
      '@types/send': 1.2.1
@@ -6811,7 +6811,7 @@ snapshots:
  '@types/fs-extra@11.0.4':
    dependencies:
      '@types/jsonfile': 6.1.4
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/hast@3.0.4':
    dependencies:
@@ -6845,7 +6845,7 @@ snapshots:

  '@types/jsonfile@6.1.4':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/keygrip@1.0.6': {}

@@ -6862,7 +6862,7 @@ snapshots:
      '@types/http-errors': 2.0.5
      '@types/keygrip': 1.0.6
      '@types/koa-compose': 3.2.9
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/mdast@4.0.4':
    dependencies:
@@ -6876,19 +6876,19 @@ snapshots:

  '@types/mute-stream@0.0.4':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/node-forge@1.3.14':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/node@22.19.11':
    dependencies:
      undici-types: 6.21.0

-  '@types/node@25.2.3':
+  '@types/node@25.3.0':
    dependencies:
-      undici-types: 7.16.0
+      undici-types: 7.18.2

  '@types/parse5@6.0.3': {}

@@ -6904,18 +6904,18 @@ snapshots:

  '@types/s3rver@3.7.4':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/semver@7.7.1': {}

  '@types/send@1.2.1':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/serve-static@2.2.0':
    dependencies:
      '@types/http-errors': 2.0.5
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/sinon-chai@3.2.12':
    dependencies:
@@ -6934,11 +6934,11 @@ snapshots:

  '@types/tar-stream@3.1.4':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/through2@2.0.41':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/triple-beam@1.3.5': {}

@@ -6966,11 +6966,11 @@ snapshots:

  '@types/ws@7.4.7':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/ws@8.18.1':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0

  '@types/yargs-parser@21.0.3': {}

@@ -6980,7 +6980,7 @@ snapshots:

  '@types/yauzl@2.10.3':
    dependencies:
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
    optional: true

  '@ungap/structured-clone@1.3.0': {}
@@ -7585,7 +7585,7 @@ snapshots:
  engine.io@6.6.4:
    dependencies:
      '@types/cors': 2.8.19
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      accepts: 1.3.8
      base64id: 2.0.0
      cookie: 0.7.2
@@ -8299,7 +8299,7 @@ snapshots:
  jest-util@29.7.0:
    dependencies:
      '@jest/types': 29.6.3
-      '@types/node': 25.2.3
+      '@types/node': 25.3.0
      chalk: 4.1.2
      ci-info: 3.9.0
      graceful-fs: 4.2.11
@@ -9807,7 +9807,7 @@ snapshots:

  undici-types@6.21.0: {}

-  undici-types@7.16.0: {}
+  undici-types@7.18.2: {}

  unified@11.0.5:
    dependencies:
--- a/readme.md
+++ b/readme.md
@@ -1,6 +1,10 @@
 # @serve.zone/remoteingress

-Edge ingress tunnel for DcRouter — accepts incoming TCP connections at the network edge and tunnels them to a DcRouter SmartProxy instance, preserving the original client IP via PROXY protocol v1.
+Edge ingress tunnel for DcRouter — accepts incoming TCP connections at the network edge and tunnels them over a single encrypted TLS connection to a DcRouter SmartProxy instance, preserving the original client IP via PROXY protocol v1.
+
+## Issue Reporting and Security
+
+For reporting bugs, issues, or security vulnerabilities, please visit [community.foss.global/](https://community.foss.global/). This is the central community hub for all issue reporting. Developers who sign and comply with our contribution agreement and go through identification can also get a [code.foss.global/](https://code.foss.global/) account to submit Pull Requests directly.

 ## Install

@@ -8,7 +12,7 @@ Edge ingress tunnel for DcRouter — accepts incoming TCP connections at the net
 pnpm install @serve.zone/remoteingress
 ```

-## Architecture
+## 🏗️ Architecture

 `@serve.zone/remoteingress` uses a **Hub/Edge** topology with a high-performance Rust core and a TypeScript API surface:

@@ -17,9 +21,9 @@ pnpm install @serve.zone/remoteingress
 │   Network Edge      │  ◄══════════════════════════►  │   Private Cluster   │
 │                     │   (multiplexed frames +        │                     │
 │  RemoteIngressEdge  │    shared-secret auth)         │  RemoteIngressHub   │
-│  Listens on :80,:443│                                │  Forwards to        │
-│  Accepts client TCP │                                │  SmartProxy on      │
-│                     │                                │  local ports        │
+│  Accepts client TCP │                                │  Forwards to        │
+│  connections on     │                                │  SmartProxy on      │
+│  hub-assigned ports │                                │  local ports        │
 └─────────────────────┘                                └─────────────────────┘
        ▲                                                       │
        │  TCP from end users                                   ▼
@@ -28,26 +32,28 @@ pnpm install @serve.zone/remoteingress

 | Component | Role |
 |-----------|------|
-| **RemoteIngressEdge** | Deployed at the network edge (e.g. a VPS or cloud instance). Listens on public ports, accepts raw TCP connections, and multiplexes them over a single TLS tunnel to the hub. |
-| **RemoteIngressHub** | Deployed alongside DcRouter/SmartProxy in a private cluster. Accepts edge connections, demuxes streams, and forwards each to SmartProxy with a PROXY protocol v1 header so the real client IP is preserved. |
+| **RemoteIngressEdge** | Deployed at the network edge (e.g. a VPS or cloud instance). Listens on ports assigned by the hub, accepts raw TCP connections, and multiplexes them over a single TLS tunnel to the hub. Ports are hot-reloadable — the hub can change them at runtime. |
+| **RemoteIngressHub** | Deployed alongside DcRouter/SmartProxy in a private cluster. Accepts edge connections, demuxes streams, and forwards each to SmartProxy with a PROXY protocol v1 header so the real client IP is preserved. Controls which ports each edge listens on. |
 | **Rust Binary** (`remoteingress-bin`) | The performance-critical networking core. Managed via `@push.rocks/smartrust` RustBridge IPC — you never interact with it directly. Cross-compiled for `linux/amd64` and `linux/arm64`. |

-### Key Features
+### ✨ Key Features

- **TLS-encrypted tunnel** between edge and hub (auto-generated self-signed cert or bring your own)
- **Multiplexed streams** — thousands of client connections flow over a single tunnel
- **PROXY protocol v1** — SmartProxy sees the real client IP, not the tunnel IP
- **Shared-secret authentication** — edges must present valid credentials to connect
- **STUN-based public IP discovery** — the edge automatically discovers its public IP via Cloudflare STUN
- **Auto-reconnect** with exponential backoff if the tunnel drops
- **Event-driven** — both Hub and Edge extend `EventEmitter` for real-time monitoring
- **Rust core** — all frame encoding, TLS, and TCP proxying happen in native code for maximum throughput
+- 🔒 **TLS-encrypted tunnel** between edge and hub (auto-generated self-signed cert or bring your own)
+- 🔀 **Multiplexed streams** — thousands of client connections flow over a single tunnel
+- 🌐 **PROXY protocol v1** — SmartProxy sees the real client IP, not the tunnel IP
+- 🔑 **Shared-secret authentication** — edges must present valid credentials to connect
+- 🎫 **Connection tokens** — encode all connection details into a single opaque string
+- 📡 **STUN-based public IP discovery** — the edge automatically discovers its public IP via Cloudflare STUN
+- 🔄 **Auto-reconnect** with exponential backoff if the tunnel drops
+- 🎛️ **Dynamic port configuration** — the hub assigns listen ports per edge and can hot-reload them at runtime via `FRAME_CONFIG` frames
+- 📣 **Event-driven** — both Hub and Edge extend `EventEmitter` for real-time monitoring
+- ⚡ **Rust core** — all frame encoding, TLS, and TCP proxying happen in native code for maximum throughput

-## Usage
+## 🚀 Usage

 Both classes are imported from the package and communicate with the Rust binary under the hood. All you need to do is configure and start them.

-### Setting up the Hub (private cluster side)
+### Setting Up the Hub (Private Cluster Side)

 ```typescript
 import { RemoteIngressHub } from '@serve.zone/remoteingress';
@@ -74,10 +80,28 @@ await hub.start({
  targetHost: '127.0.0.1', // SmartProxy host to forward streams to (default: 127.0.0.1)
 });

-// Register which edges are allowed to connect
+// Register which edges are allowed to connect, including their listen ports
 await hub.updateAllowedEdges([
-  { id: 'edge-nyc-01', secret: 'supersecrettoken1' },
-  { id: 'edge-fra-02', secret: 'supersecrettoken2' },
+  {
+    id: 'edge-nyc-01',
+    secret: 'supersecrettoken1',
+    listenPorts: [80, 443],        // ports the edge should listen on
+    stunIntervalSecs: 300,         // STUN discovery interval (default: 300)
+  },
+  {
+    id: 'edge-fra-02',
+    secret: 'supersecrettoken2',
+    listenPorts: [443, 8080],
+  },
+]);
+
+// Dynamically update ports for a connected edge — changes are pushed instantly
+await hub.updateAllowedEdges([
+  {
+    id: 'edge-nyc-01',
+    secret: 'supersecrettoken1',
+    listenPorts: [80, 443, 8443],  // added port 8443 — edge picks it up in real time
+  },
 ]);

 // Check status at any time
@@ -95,32 +119,49 @@ console.log(status);
 await hub.stop();
 ```

-### Setting up the Edge (network edge side)
+### Setting Up the Edge (Network Edge Side)
+
+The edge can be configured in two ways: with an **opaque connection token** (recommended) or with explicit config fields.
+
+#### Option A: Connection Token (Recommended)
+
+A single token encodes all connection details — ideal for provisioning edges at scale:

 ```typescript
 import { RemoteIngressEdge } from '@serve.zone/remoteingress';

 const edge = new RemoteIngressEdge();

-// Listen for events
-edge.on('tunnelConnected', () => {
-  console.log('Tunnel to hub established');
-});
-edge.on('tunnelDisconnected', () => {
-  console.log('Tunnel to hub lost — will auto-reconnect');
-});
-edge.on('publicIpDiscovered', ({ ip }) => {
-  console.log(`Public IP: ${ip}`);
-});
+edge.on('tunnelConnected', () => console.log('Tunnel established'));
+edge.on('tunnelDisconnected', () => console.log('Tunnel lost — will auto-reconnect'));
+edge.on('publicIpDiscovered', ({ ip }) => console.log(`Public IP: ${ip}`));
+edge.on('portsAssigned', ({ listenPorts }) => console.log(`Listening on ports: ${listenPorts}`));
+edge.on('portsUpdated', ({ listenPorts }) => console.log(`Ports updated: ${listenPorts}`));
+
+// Single token contains hubHost, hubPort, edgeId, and secret
+await edge.start({
+  token: 'eyJoIjoiaHViLmV4YW1wbGUuY29tIiwicCI6ODQ0MywiZSI6ImVkZ2UtbnljLTAxIiwicyI6InN1cGVyc2VjcmV0dG9rZW4xIn0',
+});
+```
+
+#### Option B: Explicit Config
+
+```typescript
+import { RemoteIngressEdge } from '@serve.zone/remoteingress';
+
+const edge = new RemoteIngressEdge();
+
+edge.on('tunnelConnected', () => console.log('Tunnel established'));
+edge.on('tunnelDisconnected', () => console.log('Tunnel lost — will auto-reconnect'));
+edge.on('publicIpDiscovered', ({ ip }) => console.log(`Public IP: ${ip}`));
+edge.on('portsAssigned', ({ listenPorts }) => console.log(`Listening on ports: ${listenPorts}`));
+edge.on('portsUpdated', ({ listenPorts }) => console.log(`Ports updated: ${listenPorts}`));

-// Start the edge — it connects to the hub and starts listening for clients
 await edge.start({
  hubHost: 'hub.example.com',  // hostname or IP of the hub
  hubPort: 8443,               // must match hub's tunnelPort (default: 8443)
  edgeId: 'edge-nyc-01',       // unique edge identifier
  secret: 'supersecrettoken1', // must match the hub's allowed edge secret
-  listenPorts: [80, 443],      // public ports to accept TCP connections on
-  stunIntervalSecs: 300,       // STUN refresh interval in seconds (optional)
 });

 // Check status at any time
@@ -138,72 +179,185 @@ console.log(edgeStatus);
 await edge.stop();
 ```

-### API Reference
+### 🎫 Connection Tokens

-#### `RemoteIngressHub`
+Connection tokens let you distribute a single opaque string instead of four separate config values. The hub operator generates the token; the edge operator just pastes it in.
+
+```typescript
+import { encodeConnectionToken, decodeConnectionToken } from '@serve.zone/remoteingress';
+
+// Hub side: generate a token for a new edge
+const token = encodeConnectionToken({
+  hubHost: 'hub.example.com',
+  hubPort: 8443,
+  edgeId: 'edge-nyc-01',
+  secret: 'supersecrettoken1',
+});
+console.log(token);
+// => 'eyJoIjoiaHViLmV4YW1wbGUuY29tIiwi...'
+
+// Edge side: inspect a token (optional — start() does this automatically)
+const data = decodeConnectionToken(token);
+console.log(data);
+// {
+//   hubHost: 'hub.example.com',
+//   hubPort: 8443,
+//   edgeId: 'edge-nyc-01',
+//   secret: 'supersecrettoken1'
+// }
+```
+
+Tokens are base64url-encoded (URL-safe, no padding) — safe to pass as environment variables, CLI arguments, or store in config files.
+
+## 📖 API Reference
+
+### `RemoteIngressHub`

 | Method / Property | Description |
 |-------------------|-------------|
 | `start(config?)` | Spawns the Rust binary and starts the tunnel listener. Config: `{ tunnelPort?: number, targetHost?: string }` |
 | `stop()` | Gracefully shuts down the hub and kills the Rust process. |
-| `updateAllowedEdges(edges)` | Dynamically update which edges are authorized. Each edge: `{ id: string, secret: string }` |
+| `updateAllowedEdges(edges)` | Dynamically update which edges are authorized and what ports they listen on. Each edge: `{ id: string, secret: string, listenPorts?: number[], stunIntervalSecs?: number }`. If ports change for a connected edge, the update is pushed immediately via a `FRAME_CONFIG` frame. |
 | `getStatus()` | Returns current hub status including connected edges and active stream counts. |
 | `running` | `boolean` — whether the Rust binary is alive. |

 **Events:** `edgeConnected`, `edgeDisconnected`, `streamOpened`, `streamClosed`

-#### `RemoteIngressEdge`
+### `RemoteIngressEdge`

 | Method / Property | Description |
 |-------------------|-------------|
-| `start(config)` | Spawns the Rust binary, connects to the hub, and starts listening on the specified ports. |
+| `start(config)` | Spawns the Rust binary and connects to the hub. Accepts `{ token: string }` or `IEdgeConfig`. Listen ports are received from the hub during handshake. |
 | `stop()` | Gracefully shuts down the edge and kills the Rust process. |
-| `getStatus()` | Returns current edge status including connection state, public IP, and active streams. |
+| `getStatus()` | Returns current edge status including connection state, public IP, listen ports, and active streams. |
 | `running` | `boolean` — whether the Rust binary is alive. |

-**Events:** `tunnelConnected`, `tunnelDisconnected`, `publicIpDiscovered`
+**Events:** `tunnelConnected`, `tunnelDisconnected`, `publicIpDiscovered`, `portsAssigned`, `portsUpdated`

-### Wire Protocol
+### Token Utilities
+
+| Function | Description |
+|----------|-------------|
+| `encodeConnectionToken(data)` | Encodes `IConnectionTokenData` into a base64url token string. |
+| `decodeConnectionToken(token)` | Decodes a token back into `IConnectionTokenData`. Throws on malformed or incomplete tokens. |
+
+### Interfaces
+
+```typescript
+interface IHubConfig {
+  tunnelPort?: number;   // default: 8443
+  targetHost?: string;   // default: '127.0.0.1'
+}
+
+interface IEdgeConfig {
+  hubHost: string;
+  hubPort?: number;      // default: 8443
+  edgeId: string;
+  secret: string;
+}
+
+interface IConnectionTokenData {
+  hubHost: string;
+  hubPort: number;
+  edgeId: string;
+  secret: string;
+}
+```
+
+## 🔌 Wire Protocol

 The tunnel uses a custom binary frame protocol over TLS:

 ```
-[stream_id: 4 bytes][type: 1 byte][length: 4 bytes][payload: N bytes]
+[stream_id: 4 bytes BE][type: 1 byte][length: 4 bytes BE][payload: N bytes]
 ```

 | Frame Type | Value | Direction | Purpose |
 |------------|-------|-----------|---------|
-| `OPEN` | `0x01` | Edge -> Hub | Open a new stream; payload is PROXY v1 header |
-| `DATA` | `0x02` | Edge -> Hub | Client data flowing upstream |
-| `CLOSE` | `0x03` | Edge -> Hub | Client closed the connection |
-| `DATA_BACK` | `0x04` | Hub -> Edge | Response data flowing downstream |
-| `CLOSE_BACK` | `0x05` | Hub -> Edge | Upstream (SmartProxy) closed the connection |
+| `OPEN` | `0x01` | Edge → Hub | Open a new stream; payload is PROXY v1 header |
+| `DATA` | `0x02` | Edge → Hub | Client data flowing upstream |
+| `CLOSE` | `0x03` | Edge → Hub | Client closed the connection |
+| `DATA_BACK` | `0x04` | Hub → Edge | Response data flowing downstream |
+| `CLOSE_BACK` | `0x05` | Hub → Edge | Upstream (SmartProxy) closed the connection |
+| `CONFIG` | `0x06` | Hub → Edge | Runtime configuration update (e.g. port changes); payload is JSON |

-Max payload size per frame: **16 MB**.
+Max payload size per frame: **16 MB**. Stream IDs are 32-bit unsigned integers.

-### Example Scenarios
+### Handshake Sequence

-1. **Expose a private Kubernetes cluster to the internet** — Deploy an Edge on a public VPS, configure your DNS to point to the VPS IP. The Edge tunnels all traffic to the Hub running inside the cluster, which hands it off to SmartProxy/DcRouter. Your cluster stays fully private — no public-facing ports needed.
+1. Edge opens a TLS connection to the hub
+2. Edge sends: `EDGE <edgeId> <secret>\n`
+3. Hub verifies credentials (constant-time comparison) and responds with JSON: `{"listenPorts":[...],"stunIntervalSecs":300}\n`
+4. Edge starts TCP listeners on the assigned ports
+5. Frame protocol begins — `OPEN`/`DATA`/`CLOSE` frames flow in both directions
+6. Hub can push `CONFIG` frames at any time to update the edge's listen ports

-2. **Multi-region edge ingress** — Run multiple Edges in different geographic regions (NYC, Frankfurt, Tokyo) all connecting to a single Hub. Use GeoDNS to route users to their nearest Edge. The Hub sees the real client IPs via PROXY protocol regardless of which edge they connected through.
+## 💡 Example Scenarios

-3. **Secure API exposure** — Your backend runs on a private network with no direct internet access. An Edge on a minimal cloud instance acts as the only public entry point. TLS tunnel + shared-secret auth ensure only your authorized Edge can forward traffic.
+### 1. Expose a Private Kubernetes Cluster to the Internet
+
+Deploy an Edge on a public VPS, point your DNS to the VPS IP. The Edge tunnels all traffic to the Hub running inside the cluster, which hands it off to SmartProxy/DcRouter. Your cluster stays fully private — no public-facing ports needed.
+
+### 2. Multi-Region Edge Ingress
+
+Run multiple Edges in different geographic regions (NYC, Frankfurt, Tokyo) all connecting to a single Hub. Use GeoDNS to route users to their nearest Edge. The Hub sees the real client IPs via PROXY protocol regardless of which edge they connected through.
+
+### 3. Secure API Exposure
+
+Your backend runs on a private network with no direct internet access. An Edge on a minimal cloud instance acts as the only public entry point. TLS tunnel + shared-secret auth ensure only your authorized Edge can forward traffic.
+
+### 4. Token-Based Edge Provisioning
+
+Generate connection tokens on the hub side and distribute them to edge operators. Each edge only needs a single token string to connect — no manual configuration of host, port, ID, and secret.
+
+```typescript
+// Hub operator generates token
+const token = encodeConnectionToken({
+  hubHost: 'hub.prod.example.com',
+  hubPort: 8443,
+  edgeId: 'edge-tokyo-01',
+  secret: 'generated-secret-abc123',
+});
+// Send `token` to the edge operator via secure channel
+
+// Edge operator starts with just the token
+const edge = new RemoteIngressEdge();
+await edge.start({ token });
+```
+
+### 5. Dynamic Port Management
+
+The hub controls which ports each edge listens on. Ports can be changed at runtime without restarting the edge — the hub pushes a `CONFIG` frame and the edge hot-reloads its TCP listeners.
+
+```typescript
+// Initially assign ports 80 and 443
+await hub.updateAllowedEdges([
+  { id: 'edge-nyc-01', secret: 'secret', listenPorts: [80, 443] },
+]);
+
+// Later, add port 8080 — the connected edge picks it up instantly
+await hub.updateAllowedEdges([
+  { id: 'edge-nyc-01', secret: 'secret', listenPorts: [80, 443, 8080] },
+]);
+```

 ## License and Legal Information

-This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository.
+This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the [LICENSE](./LICENSE) file.

 **Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

 ### Trademarks

-This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.
+This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.
+
+Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.

 ### Company Information

 Task Venture Capital GmbH
-Registered at District court Bremen HRB 35230 HB, Germany
+Registered at District Court Bremen HRB 35230 HB, Germany

-For any legal inquiries or if you require further information, please contact us via email at hello@task.vc.
+For any legal inquiries or further information, please contact us via email at hello@task.vc.

 By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -234,6 +234,18 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"

+[[package]]
+name = "futures-core"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
+
+[[package]]
+name = "futures-sink"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c39754e157331b013978ec91992bde1ac089843443c49cbc7f46150b0fad0893"
+
 [[package]]
 name = "getrandom"
 version = "0.2.17"
@@ -315,6 +327,16 @@ version = "0.2.182"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6800badb6cb2082ffd7b6a67e6125bb39f18782f793520caee8cb8846be06112"

+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "667f4fec20f29dfc6bc7357c582d91796c169ad7e2fce709468aefeb2c099870"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.14"
@@ -336,6 +358,15 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"

+[[package]]
+name = "mimalloc"
+version = "0.1.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1ee66a4b64c74f4ef288bcbb9192ad9c3feaad75193129ac8509af543894fd8"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mio"
 version = "1.1.1"
@@ -507,6 +538,7 @@ dependencies = [
 "clap",
 "env_logger",
 "log",
+ "mimalloc",
 "remoteingress-core",
 "remoteingress-protocol",
 "rustls",
@@ -528,6 +560,7 @@ dependencies = [
 "serde_json",
 "tokio",
 "tokio-rustls",
+ "tokio-util",
 ]

 [[package]]
@@ -758,6 +791,19 @@ dependencies = [
 "tokio",
 ]

+[[package]]
+name = "tokio-util"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ae9cec805b01e8fc3fd2fe289f89149a9b66dd16786abd8b19cfa7b48cb0098"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.24"
--- a/rust/crates/remoteingress-bin/Cargo.toml
+++ b/rust/crates/remoteingress-bin/Cargo.toml
@@ -17,3 +17,4 @@ serde_json = "1"
 log = "0.4"
 env_logger = "0.11"
 rustls = { version = "0.23", default-features = false, features = ["ring"] }
+mimalloc = "0.1"
--- a/rust/crates/remoteingress-bin/src/main.rs
+++ b/rust/crates/remoteingress-bin/src/main.rs
@@ -1,3 +1,6 @@
+#[global_allocator]
+static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 use clap::Parser;
 use serde::{Deserialize, Serialize};
 use std::sync::Arc;
@@ -164,10 +167,10 @@ async fn handle_request(
                tokio::spawn(async move {
                    while let Some(event) = event_rx.recv().await {
                        match &event {
-                            HubEvent::EdgeConnected { edge_id } => {
+                            HubEvent::EdgeConnected { edge_id, peer_addr } => {
                                send_event(
                                    "edgeConnected",
-                                    serde_json::json!({ "edgeId": edge_id }),
+                                    serde_json::json!({ "edgeId": edge_id, "peerAddr": peer_addr }),
                                );
                            }
                            HubEvent::EdgeDisconnected { edge_id } => {
@@ -301,6 +304,18 @@ async fn handle_request(
                                    serde_json::json!({ "ip": ip }),
                                );
                            }
+                            EdgeEvent::PortsAssigned { listen_ports } => {
+                                send_event(
+                                    "portsAssigned",
+                                    serde_json::json!({ "listenPorts": listen_ports }),
+                                );
+                            }
+                            EdgeEvent::PortsUpdated { listen_ports } => {
+                                send_event(
+                                    "portsUpdated",
+                                    serde_json::json!({ "listenPorts": listen_ports }),
+                                );
+                            }
                        }
                    }
                });
@@ -357,3 +372,58 @@ async fn handle_request(
        }
    }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_ipc_request_deserialize() {
+        let json = r#"{"id": "1", "method": "ping", "params": {}}"#;
+        let req: IpcRequest = serde_json::from_str(json).unwrap();
+        assert_eq!(req.id, "1");
+        assert_eq!(req.method, "ping");
+        assert!(req.params.is_object());
+    }
+
+    #[test]
+    fn test_ipc_response_skip_error_when_none() {
+        let resp = IpcResponse {
+            id: "1".to_string(),
+            success: true,
+            result: Some(serde_json::json!({"pong": true})),
+            error: None,
+        };
+        let json = serde_json::to_value(&resp).unwrap();
+        assert_eq!(json["id"], "1");
+        assert_eq!(json["success"], true);
+        assert_eq!(json["result"]["pong"], true);
+        assert!(json.get("error").is_none());
+    }
+
+    #[test]
+    fn test_ipc_response_skip_result_when_none() {
+        let resp = IpcResponse {
+            id: "2".to_string(),
+            success: false,
+            result: None,
+            error: Some("something failed".to_string()),
+        };
+        let json = serde_json::to_value(&resp).unwrap();
+        assert_eq!(json["id"], "2");
+        assert_eq!(json["success"], false);
+        assert_eq!(json["error"], "something failed");
+        assert!(json.get("result").is_none());
+    }
+
+    #[test]
+    fn test_ipc_event_serialize() {
+        let evt = IpcEvent {
+            event: "ready".to_string(),
+            data: serde_json::json!({"version": "2.0.0"}),
+        };
+        let json = serde_json::to_value(&evt).unwrap();
+        assert_eq!(json["event"], "ready");
+        assert_eq!(json["data"]["version"], "2.0.0");
+    }
+}
--- a/rust/crates/remoteingress-core/Cargo.toml
+++ b/rust/crates/remoteingress-core/Cargo.toml
@@ -13,3 +13,4 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 log = "0.4"
 rustls-pemfile = "2"
+tokio-util = "0.7"
--- a/rust/crates/remoteingress-core/src/edge.rs
+++ b/rust/crates/remoteingress-core/src/edge.rs
@@ -1,15 +1,17 @@
 use std::collections::HashMap;
 use std::sync::atomic::{AtomicU32, Ordering};
 use std::sync::Arc;
-use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
 use tokio::net::{TcpListener, TcpStream};
 use tokio::sync::{mpsc, Mutex, RwLock};
+use tokio::task::JoinHandle;
 use tokio_rustls::TlsConnector;
+use tokio_util::sync::CancellationToken;
 use serde::{Deserialize, Serialize};

 use remoteingress_protocol::*;

-/// Edge configuration.
+/// Edge configuration (hub-host + credentials only; ports come from hub).
 #[derive(Debug, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct EdgeConfig {
@@ -17,8 +19,26 @@ pub struct EdgeConfig {
    pub hub_port: u16,
    pub edge_id: String,
    pub secret: String,
-    pub listen_ports: Vec<u16>,
-    pub stun_interval_secs: Option<u64>,
+}
+
+/// Handshake config received from hub after authentication.
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct HandshakeConfig {
+    listen_ports: Vec<u16>,
+    #[serde(default = "default_stun_interval")]
+    stun_interval_secs: u64,
+}
+
+fn default_stun_interval() -> u64 {
+    300
+}
+
+/// Runtime config update received from hub via FRAME_CONFIG.
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct ConfigUpdate {
+    listen_ports: Vec<u16>,
 }

 /// Events emitted by the edge.
@@ -30,6 +50,10 @@ pub enum EdgeEvent {
    TunnelDisconnected,
    #[serde(rename_all = "camelCase")]
    PublicIpDiscovered { ip: String },
+    #[serde(rename_all = "camelCase")]
+    PortsAssigned { listen_ports: Vec<u16> },
+    #[serde(rename_all = "camelCase")]
+    PortsUpdated { listen_ports: Vec<u16> },
 }

 /// Edge status response.
@@ -46,19 +70,21 @@ pub struct EdgeStatus {
 /// The tunnel edge that listens for client connections and multiplexes them to the hub.
 pub struct TunnelEdge {
    config: RwLock<EdgeConfig>,
-    event_tx: mpsc::UnboundedSender<EdgeEvent>,
-    event_rx: Mutex<Option<mpsc::UnboundedReceiver<EdgeEvent>>>,
+    event_tx: mpsc::Sender<EdgeEvent>,
+    event_rx: Mutex<Option<mpsc::Receiver<EdgeEvent>>>,
    shutdown_tx: Mutex<Option<mpsc::Sender<()>>>,
    running: RwLock<bool>,
    connected: Arc<RwLock<bool>>,
    public_ip: Arc<RwLock<Option<String>>>,
    active_streams: Arc<AtomicU32>,
    next_stream_id: Arc<AtomicU32>,
+    listen_ports: Arc<RwLock<Vec<u16>>>,
+    cancel_token: CancellationToken,
 }

 impl TunnelEdge {
    pub fn new(config: EdgeConfig) -> Self {
-        let (event_tx, event_rx) = mpsc::unbounded_channel();
+        let (event_tx, event_rx) = mpsc::channel(1024);
        Self {
            config: RwLock::new(config),
            event_tx,
@@ -69,11 +95,13 @@ impl TunnelEdge {
            public_ip: Arc::new(RwLock::new(None)),
            active_streams: Arc::new(AtomicU32::new(0)),
            next_stream_id: Arc::new(AtomicU32::new(1)),
+            listen_ports: Arc::new(RwLock::new(Vec::new())),
+            cancel_token: CancellationToken::new(),
        }
    }

    /// Take the event receiver (can only be called once).
-    pub async fn take_event_rx(&self) -> Option<mpsc::UnboundedReceiver<EdgeEvent>> {
+    pub async fn take_event_rx(&self) -> Option<mpsc::Receiver<EdgeEvent>> {
        self.event_rx.lock().await.take()
    }

@@ -84,7 +112,7 @@ impl TunnelEdge {
            connected: *self.connected.read().await,
            public_ip: self.public_ip.read().await.clone(),
            active_streams: self.active_streams.load(Ordering::Relaxed) as usize,
-            listen_ports: self.config.read().await.listen_ports.clone(),
+            listen_ports: self.listen_ports.read().await.clone(),
        }
    }

@@ -100,6 +128,8 @@ impl TunnelEdge {
        let active_streams = self.active_streams.clone();
        let next_stream_id = self.next_stream_id.clone();
        let event_tx = self.event_tx.clone();
+        let listen_ports = self.listen_ports.clone();
+        let cancel_token = self.cancel_token.clone();

        tokio::spawn(async move {
            edge_main_loop(
@@ -109,7 +139,9 @@ impl TunnelEdge {
                active_streams,
                next_stream_id,
                event_tx,
+                listen_ports,
                shutdown_rx,
+                cancel_token,
            )
            .await;
        });
@@ -119,11 +151,19 @@ impl TunnelEdge {

    /// Stop the edge.
    pub async fn stop(&self) {
+        self.cancel_token.cancel();
        if let Some(tx) = self.shutdown_tx.lock().await.take() {
            let _ = tx.send(()).await;
        }
        *self.running.write().await = false;
        *self.connected.write().await = false;
+        self.listen_ports.write().await.clear();
+    }
+}
+
+impl Drop for TunnelEdge {
+    fn drop(&mut self) {
+        self.cancel_token.cancel();
    }
 }

@@ -133,13 +173,18 @@ async fn edge_main_loop(
    public_ip: Arc<RwLock<Option<String>>>,
    active_streams: Arc<AtomicU32>,
    next_stream_id: Arc<AtomicU32>,
-    event_tx: mpsc::UnboundedSender<EdgeEvent>,
+    event_tx: mpsc::Sender<EdgeEvent>,
+    listen_ports: Arc<RwLock<Vec<u16>>>,
    mut shutdown_rx: mpsc::Receiver<()>,
+    cancel_token: CancellationToken,
 ) {
    let mut backoff_ms: u64 = 1000;
    let max_backoff_ms: u64 = 30000;

    loop {
+        // Create a per-connection child token
+        let connection_token = cancel_token.child_token();
+
        // Try to connect to hub
        let result = connect_to_hub_and_run(
            &config,
@@ -148,13 +193,21 @@ async fn edge_main_loop(
            &active_streams,
            &next_stream_id,
            &event_tx,
+            &listen_ports,
            &mut shutdown_rx,
+            &connection_token,
        )
        .await;

+        // Cancel connection token to kill all orphaned tasks from this cycle
+        connection_token.cancel();
+
        *connected.write().await = false;
-        let _ = event_tx.send(EdgeEvent::TunnelDisconnected);
+        let _ = event_tx.try_send(EdgeEvent::TunnelDisconnected);
        active_streams.store(0, Ordering::Relaxed);
+        // Reset stream ID counter for next connection cycle
+        next_stream_id.store(1, Ordering::Relaxed);
+        listen_ports.write().await.clear();

        match result {
            EdgeLoopResult::Shutdown => break,
@@ -162,6 +215,7 @@ async fn edge_main_loop(
                log::info!("Reconnecting in {}ms...", backoff_ms);
                tokio::select! {
                    _ = tokio::time::sleep(std::time::Duration::from_millis(backoff_ms)) => {}
+                    _ = cancel_token.cancelled() => break,
                    _ = shutdown_rx.recv() => break,
                }
                backoff_ms = (backoff_ms * 2).min(max_backoff_ms);
@@ -181,8 +235,10 @@ async fn connect_to_hub_and_run(
    public_ip: &Arc<RwLock<Option<String>>>,
    active_streams: &Arc<AtomicU32>,
    next_stream_id: &Arc<AtomicU32>,
-    event_tx: &mpsc::UnboundedSender<EdgeEvent>,
+    event_tx: &mpsc::Sender<EdgeEvent>,
+    listen_ports: &Arc<RwLock<Vec<u16>>>,
    shutdown_rx: &mut mpsc::Receiver<()>,
+    connection_token: &CancellationToken,
 ) -> EdgeLoopResult {
    // Build TLS connector that skips cert verification (auth is via secret)
    let tls_config = rustls::ClientConfig::builder()
@@ -220,25 +276,69 @@ async fn connect_to_hub_and_run(
        return EdgeLoopResult::Reconnect;
    }

+    // Read handshake response line from hub (JSON with initial config)
+    let mut buf_reader = BufReader::new(read_half);
+    let mut handshake_line = String::new();
+    match buf_reader.read_line(&mut handshake_line).await {
+        Ok(0) => {
+            log::error!("Hub rejected connection (EOF before handshake)");
+            return EdgeLoopResult::Reconnect;
+        }
+        Ok(_) => {}
+        Err(e) => {
+            log::error!("Failed to read handshake response: {}", e);
+            return EdgeLoopResult::Reconnect;
+        }
+    }
+
+    let handshake: HandshakeConfig = match serde_json::from_str(handshake_line.trim()) {
+        Ok(h) => h,
+        Err(e) => {
+            log::error!("Invalid handshake response: {}", e);
+            return EdgeLoopResult::Reconnect;
+        }
+    };
+
+    log::info!(
+        "Handshake from hub: ports {:?}, stun_interval {}s",
+        handshake.listen_ports,
+        handshake.stun_interval_secs
+    );
+
    *connected.write().await = true;
-    let _ = event_tx.send(EdgeEvent::TunnelConnected);
+    let _ = event_tx.try_send(EdgeEvent::TunnelConnected);
    log::info!("Connected to hub at {}", addr);

+    // Store initial ports and emit event
+    *listen_ports.write().await = handshake.listen_ports.clone();
+    let _ = event_tx.try_send(EdgeEvent::PortsAssigned {
+        listen_ports: handshake.listen_ports.clone(),
+    });
+
    // Start STUN discovery
-    let stun_interval = config.stun_interval_secs.unwrap_or(300);
+    let stun_interval = handshake.stun_interval_secs;
    let public_ip_clone = public_ip.clone();
    let event_tx_clone = event_tx.clone();
+    let stun_token = connection_token.clone();
    let stun_handle = tokio::spawn(async move {
        loop {
-            if let Some(ip) = crate::stun::discover_public_ip().await {
-                let mut pip = public_ip_clone.write().await;
-                let changed = pip.as_ref() != Some(&ip);
-                *pip = Some(ip.clone());
-                if changed {
-                    let _ = event_tx_clone.send(EdgeEvent::PublicIpDiscovered { ip });
+            tokio::select! {
+                ip_result = crate::stun::discover_public_ip() => {
+                    if let Some(ip) = ip_result {
+                        let mut pip = public_ip_clone.write().await;
+                        let changed = pip.as_ref() != Some(&ip);
+                        *pip = Some(ip.clone());
+                        if changed {
+                            let _ = event_tx_clone.try_send(EdgeEvent::PublicIpDiscovered { ip });
+                        }
+                    }
                }
+                _ = stun_token.cancelled() => break,
+            }
+            tokio::select! {
+                _ = tokio::time::sleep(std::time::Duration::from_secs(stun_interval)) => {}
+                _ = stun_token.cancelled() => break,
            }
-            tokio::time::sleep(std::time::Duration::from_secs(stun_interval)).await;
        }
    });

@@ -246,64 +346,42 @@ async fn connect_to_hub_and_run(
    let client_writers: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>> =
        Arc::new(Mutex::new(HashMap::new()));

-    // Shared tunnel writer
-    let tunnel_writer = Arc::new(Mutex::new(write_half));
-
-    // Start TCP listeners for each port
-    let mut listener_handles = Vec::new();
-    for &port in &config.listen_ports {
-        let tunnel_writer = tunnel_writer.clone();
-        let client_writers = client_writers.clone();
-        let active_streams = active_streams.clone();
-        let next_stream_id = next_stream_id.clone();
-        let edge_id = config.edge_id.clone();
-
-        let handle = tokio::spawn(async move {
-            let listener = match TcpListener::bind(("0.0.0.0", port)).await {
-                Ok(l) => l,
-                Err(e) => {
-                    log::error!("Failed to bind port {}: {}", port, e);
-                    return;
-                }
-            };
-            log::info!("Listening on port {}", port);
-
-            loop {
-                match listener.accept().await {
-                    Ok((client_stream, client_addr)) => {
-                        let stream_id = next_stream_id.fetch_add(1, Ordering::Relaxed);
-                        let tunnel_writer = tunnel_writer.clone();
-                        let client_writers = client_writers.clone();
-                        let active_streams = active_streams.clone();
-                        let edge_id = edge_id.clone();
-
-                        active_streams.fetch_add(1, Ordering::Relaxed);
-
-                        tokio::spawn(async move {
-                            handle_client_connection(
-                                client_stream,
-                                client_addr,
-                                stream_id,
-                                port,
-                                &edge_id,
-                                tunnel_writer,
-                                client_writers,
-                            )
-                            .await;
-                            active_streams.fetch_sub(1, Ordering::Relaxed);
-                        });
-                    }
-                    Err(e) => {
-                        log::error!("Accept error on port {}: {}", port, e);
+    // A5: Channel-based tunnel writer replaces Arc<Mutex<WriteHalf>>
+    let (tunnel_writer_tx, mut tunnel_writer_rx) = mpsc::channel::<Vec<u8>>(4096);
+    let tw_token = connection_token.clone();
+    let tunnel_writer_handle = tokio::spawn(async move {
+        loop {
+            tokio::select! {
+                data = tunnel_writer_rx.recv() => {
+                    match data {
+                        Some(frame_data) => {
+                            if write_half.write_all(&frame_data).await.is_err() {
+                                break;
+                            }
+                        }
+                        None => break,
                    }
                }
+                _ = tw_token.cancelled() => break,
            }
-        });
-        listener_handles.push(handle);
-    }
+        }
+    });
+
+    // Start TCP listeners for initial ports (hot-reloadable)
+    let mut port_listeners: HashMap<u16, JoinHandle<()>> = HashMap::new();
+    apply_port_config(
+        &handshake.listen_ports,
+        &mut port_listeners,
+        &tunnel_writer_tx,
+        &client_writers,
+        active_streams,
+        next_stream_id,
+        &config.edge_id,
+        connection_token,
+    );

    // Read frames from hub
-    let mut frame_reader = FrameReader::new(read_half);
+    let mut frame_reader = FrameReader::new(buf_reader);
    let result = loop {
        tokio::select! {
            frame_result = frame_reader.next_frame() => {
@@ -311,15 +389,37 @@ async fn connect_to_hub_and_run(
                    Ok(Some(frame)) => {
                        match frame.frame_type {
                            FRAME_DATA_BACK => {
+                                // A1: Non-blocking send to prevent head-of-line blocking
                                let writers = client_writers.lock().await;
                                if let Some(tx) = writers.get(&frame.stream_id) {
-                                    let _ = tx.send(frame.payload).await;
+                                    if tx.try_send(frame.payload).is_err() {
+                                        log::warn!("Stream {} back-channel full, dropping frame", frame.stream_id);
+                                    }
                                }
                            }
                            FRAME_CLOSE_BACK => {
                                let mut writers = client_writers.lock().await;
                                writers.remove(&frame.stream_id);
                            }
+                            FRAME_CONFIG => {
+                                if let Ok(update) = serde_json::from_slice::<ConfigUpdate>(&frame.payload) {
+                                    log::info!("Config update from hub: ports {:?}", update.listen_ports);
+                                    *listen_ports.write().await = update.listen_ports.clone();
+                                    let _ = event_tx.try_send(EdgeEvent::PortsUpdated {
+                                        listen_ports: update.listen_ports.clone(),
+                                    });
+                                    apply_port_config(
+                                        &update.listen_ports,
+                                        &mut port_listeners,
+                                        &tunnel_writer_tx,
+                                        &client_writers,
+                                        active_streams,
+                                        next_stream_id,
+                                        &config.edge_id,
+                                        connection_token,
+                                    );
+                                }
+                            }
                            _ => {
                                log::warn!("Unexpected frame type {} from hub", frame.frame_type);
                            }
@@ -335,29 +435,122 @@ async fn connect_to_hub_and_run(
                    }
                }
            }
+            _ = connection_token.cancelled() => {
+                log::info!("Connection cancelled");
+                break EdgeLoopResult::Shutdown;
+            }
            _ = shutdown_rx.recv() => {
                break EdgeLoopResult::Shutdown;
            }
        }
    };

-    // Cleanup
+    // Cancel connection token to propagate to all child tasks BEFORE aborting
+    connection_token.cancel();
    stun_handle.abort();
-    for h in listener_handles {
+    tunnel_writer_handle.abort();
+    for (_, h) in port_listeners.drain() {
        h.abort();
    }

    result
 }

+/// Apply a new port configuration: spawn listeners for added ports, abort removed ports.
+fn apply_port_config(
+    new_ports: &[u16],
+    port_listeners: &mut HashMap<u16, JoinHandle<()>>,
+    tunnel_writer_tx: &mpsc::Sender<Vec<u8>>,
+    client_writers: &Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
+    active_streams: &Arc<AtomicU32>,
+    next_stream_id: &Arc<AtomicU32>,
+    edge_id: &str,
+    connection_token: &CancellationToken,
+) {
+    let new_set: std::collections::HashSet<u16> = new_ports.iter().copied().collect();
+    let old_set: std::collections::HashSet<u16> = port_listeners.keys().copied().collect();
+
+    // Remove ports no longer needed
+    for &port in old_set.difference(&new_set) {
+        if let Some(handle) = port_listeners.remove(&port) {
+            log::info!("Stopping listener on port {}", port);
+            handle.abort();
+        }
+    }
+
+    // Add new ports
+    for &port in new_set.difference(&old_set) {
+        let tunnel_writer_tx = tunnel_writer_tx.clone();
+        let client_writers = client_writers.clone();
+        let active_streams = active_streams.clone();
+        let next_stream_id = next_stream_id.clone();
+        let edge_id = edge_id.to_string();
+        let port_token = connection_token.child_token();
+
+        let handle = tokio::spawn(async move {
+            let listener = match TcpListener::bind(("0.0.0.0", port)).await {
+                Ok(l) => l,
+                Err(e) => {
+                    log::error!("Failed to bind port {}: {}", port, e);
+                    return;
+                }
+            };
+            log::info!("Listening on port {}", port);
+
+            loop {
+                tokio::select! {
+                    accept_result = listener.accept() => {
+                        match accept_result {
+                            Ok((client_stream, client_addr)) => {
+                                let stream_id = next_stream_id.fetch_add(1, Ordering::Relaxed);
+                                let tunnel_writer_tx = tunnel_writer_tx.clone();
+                                let client_writers = client_writers.clone();
+                                let active_streams = active_streams.clone();
+                                let edge_id = edge_id.clone();
+                                let client_token = port_token.child_token();
+
+                                active_streams.fetch_add(1, Ordering::Relaxed);
+
+                                tokio::spawn(async move {
+                                    handle_client_connection(
+                                        client_stream,
+                                        client_addr,
+                                        stream_id,
+                                        port,
+                                        &edge_id,
+                                        tunnel_writer_tx,
+                                        client_writers,
+                                        client_token,
+                                    )
+                                    .await;
+                                    active_streams.fetch_sub(1, Ordering::Relaxed);
+                                });
+                            }
+                            Err(e) => {
+                                log::error!("Accept error on port {}: {}", port, e);
+                            }
+                        }
+                    }
+                    _ = port_token.cancelled() => {
+                        log::info!("Port {} listener cancelled", port);
+                        break;
+                    }
+                }
+            }
+        });
+        port_listeners.insert(port, handle);
+    }
+}
+
 async fn handle_client_connection(
    client_stream: TcpStream,
    client_addr: std::net::SocketAddr,
    stream_id: u32,
    dest_port: u16,
    edge_id: &str,
-    tunnel_writer: Arc<Mutex<tokio::io::WriteHalf<tokio_rustls::client::TlsStream<TcpStream>>>>,
+    tunnel_writer_tx: mpsc::Sender<Vec<u8>>,
    client_writers: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
+    client_token: CancellationToken,
 ) {
    let client_ip = client_addr.ip().to_string();
    let client_port = client_addr.port();
@@ -365,14 +558,11 @@ async fn handle_client_connection(
    // Determine edge IP (use 0.0.0.0 as placeholder — hub doesn't use it for routing)
    let edge_ip = "0.0.0.0";

-    // Send OPEN frame with PROXY v1 header
+    // Send OPEN frame with PROXY v1 header via writer channel
    let proxy_header = build_proxy_v1_header(&client_ip, edge_ip, client_port, dest_port);
    let open_frame = encode_frame(stream_id, FRAME_OPEN, proxy_header.as_bytes());
-    {
-        let mut w = tunnel_writer.lock().await;
-        if w.write_all(&open_frame).await.is_err() {
-            return;
-        }
+    if tunnel_writer_tx.send(open_frame).await.is_err() {
+        return;
    }

    // Set up channel for data coming back from hub
@@ -385,36 +575,52 @@ async fn handle_client_connection(
    let (mut client_read, mut client_write) = client_stream.into_split();

    // Task: hub -> client
+    let hub_to_client_token = client_token.clone();
    let hub_to_client = tokio::spawn(async move {
-        while let Some(data) = back_rx.recv().await {
-            if client_write.write_all(&data).await.is_err() {
-                break;
+        loop {
+            tokio::select! {
+                data = back_rx.recv() => {
+                    match data {
+                        Some(data) => {
+                            if client_write.write_all(&data).await.is_err() {
+                                break;
+                            }
+                        }
+                        None => break,
+                    }
+                }
+                _ = hub_to_client_token.cancelled() => break,
            }
        }
        let _ = client_write.shutdown().await;
    });

-    // Task: client -> hub
+    // Task: client -> hub (via writer channel)
    let mut buf = vec![0u8; 32768];
    loop {
-        match client_read.read(&mut buf).await {
-            Ok(0) => break,
-            Ok(n) => {
-                let data_frame = encode_frame(stream_id, FRAME_DATA, &buf[..n]);
-                let mut w = tunnel_writer.lock().await;
-                if w.write_all(&data_frame).await.is_err() {
-                    break;
+        tokio::select! {
+            read_result = client_read.read(&mut buf) => {
+                match read_result {
+                    Ok(0) => break,
+                    Ok(n) => {
+                        let data_frame = encode_frame(stream_id, FRAME_DATA, &buf[..n]);
+                        // A5: Use try_send to avoid blocking if writer channel is full
+                        if tunnel_writer_tx.try_send(data_frame).is_err() {
+                            log::warn!("Stream {} tunnel writer full, closing", stream_id);
+                            break;
+                        }
+                    }
+                    Err(_) => break,
                }
            }
-            Err(_) => break,
+            _ = client_token.cancelled() => break,
        }
    }

-    // Send CLOSE frame
-    let close_frame = encode_frame(stream_id, FRAME_CLOSE, &[]);
-    {
-        let mut w = tunnel_writer.lock().await;
-        let _ = w.write_all(&close_frame).await;
+    // Send CLOSE frame (only if not cancelled)
+    if !client_token.is_cancelled() {
+        let close_frame = encode_frame(stream_id, FRAME_CLOSE, &[]);
+        let _ = tunnel_writer_tx.try_send(close_frame);
    }

    // Cleanup
@@ -426,6 +632,186 @@ async fn handle_client_connection(
    let _ = edge_id; // used for logging context
 }

+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // --- Serde tests ---
+
+    #[test]
+    fn test_edge_config_deserialize_camel_case() {
+        let json = r#"{
+            "hubHost": "hub.example.com",
+            "hubPort": 8443,
+            "edgeId": "edge-1",
+            "secret": "my-secret"
+        }"#;
+        let config: EdgeConfig = serde_json::from_str(json).unwrap();
+        assert_eq!(config.hub_host, "hub.example.com");
+        assert_eq!(config.hub_port, 8443);
+        assert_eq!(config.edge_id, "edge-1");
+        assert_eq!(config.secret, "my-secret");
+    }
+
+    #[test]
+    fn test_edge_config_serialize_roundtrip() {
+        let config = EdgeConfig {
+            hub_host: "host.test".to_string(),
+            hub_port: 9999,
+            edge_id: "e1".to_string(),
+            secret: "sec".to_string(),
+        };
+        let json = serde_json::to_string(&config).unwrap();
+        let back: EdgeConfig = serde_json::from_str(&json).unwrap();
+        assert_eq!(back.hub_host, config.hub_host);
+        assert_eq!(back.hub_port, config.hub_port);
+        assert_eq!(back.edge_id, config.edge_id);
+        assert_eq!(back.secret, config.secret);
+    }
+
+    #[test]
+    fn test_handshake_config_deserialize_all_fields() {
+        let json = r#"{"listenPorts": [80, 443], "stunIntervalSecs": 120}"#;
+        let hc: HandshakeConfig = serde_json::from_str(json).unwrap();
+        assert_eq!(hc.listen_ports, vec![80, 443]);
+        assert_eq!(hc.stun_interval_secs, 120);
+    }
+
+    #[test]
+    fn test_handshake_config_default_stun_interval() {
+        let json = r#"{"listenPorts": [443]}"#;
+        let hc: HandshakeConfig = serde_json::from_str(json).unwrap();
+        assert_eq!(hc.listen_ports, vec![443]);
+        assert_eq!(hc.stun_interval_secs, 300);
+    }
+
+    #[test]
+    fn test_config_update_deserialize() {
+        let json = r#"{"listenPorts": [8080, 9090]}"#;
+        let update: ConfigUpdate = serde_json::from_str(json).unwrap();
+        assert_eq!(update.listen_ports, vec![8080, 9090]);
+    }
+
+    #[test]
+    fn test_edge_status_serialize() {
+        let status = EdgeStatus {
+            running: true,
+            connected: true,
+            public_ip: Some("1.2.3.4".to_string()),
+            active_streams: 5,
+            listen_ports: vec![443],
+        };
+        let json = serde_json::to_value(&status).unwrap();
+        assert_eq!(json["running"], true);
+        assert_eq!(json["connected"], true);
+        assert_eq!(json["publicIp"], "1.2.3.4");
+        assert_eq!(json["activeStreams"], 5);
+        assert_eq!(json["listenPorts"], serde_json::json!([443]));
+    }
+
+    #[test]
+    fn test_edge_status_serialize_none_ip() {
+        let status = EdgeStatus {
+            running: false,
+            connected: false,
+            public_ip: None,
+            active_streams: 0,
+            listen_ports: vec![],
+        };
+        let json = serde_json::to_value(&status).unwrap();
+        assert!(json["publicIp"].is_null());
+    }
+
+    #[test]
+    fn test_edge_event_tunnel_connected() {
+        let event = EdgeEvent::TunnelConnected;
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "tunnelConnected");
+    }
+
+    #[test]
+    fn test_edge_event_tunnel_disconnected() {
+        let event = EdgeEvent::TunnelDisconnected;
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "tunnelDisconnected");
+    }
+
+    #[test]
+    fn test_edge_event_public_ip_discovered() {
+        let event = EdgeEvent::PublicIpDiscovered {
+            ip: "203.0.113.1".to_string(),
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "publicIpDiscovered");
+        assert_eq!(json["ip"], "203.0.113.1");
+    }
+
+    #[test]
+    fn test_edge_event_ports_assigned() {
+        let event = EdgeEvent::PortsAssigned {
+            listen_ports: vec![443, 8080],
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "portsAssigned");
+        assert_eq!(json["listenPorts"], serde_json::json!([443, 8080]));
+    }
+
+    #[test]
+    fn test_edge_event_ports_updated() {
+        let event = EdgeEvent::PortsUpdated {
+            listen_ports: vec![9090],
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "portsUpdated");
+        assert_eq!(json["listenPorts"], serde_json::json!([9090]));
+    }
+
+    // --- Async tests ---
+
+    #[tokio::test]
+    async fn test_tunnel_edge_new_get_status() {
+        let edge = TunnelEdge::new(EdgeConfig {
+            hub_host: "localhost".to_string(),
+            hub_port: 8443,
+            edge_id: "test-edge".to_string(),
+            secret: "test-secret".to_string(),
+        });
+        let status = edge.get_status().await;
+        assert!(!status.running);
+        assert!(!status.connected);
+        assert!(status.public_ip.is_none());
+        assert_eq!(status.active_streams, 0);
+        assert!(status.listen_ports.is_empty());
+    }
+
+    #[tokio::test]
+    async fn test_tunnel_edge_take_event_rx() {
+        let edge = TunnelEdge::new(EdgeConfig {
+            hub_host: "localhost".to_string(),
+            hub_port: 8443,
+            edge_id: "e".to_string(),
+            secret: "s".to_string(),
+        });
+        let rx1 = edge.take_event_rx().await;
+        assert!(rx1.is_some());
+        let rx2 = edge.take_event_rx().await;
+        assert!(rx2.is_none());
+    }
+
+    #[tokio::test]
+    async fn test_tunnel_edge_stop_without_start() {
+        let edge = TunnelEdge::new(EdgeConfig {
+            hub_host: "localhost".to_string(),
+            hub_port: 8443,
+            edge_id: "e".to_string(),
+            secret: "s".to_string(),
+        });
+        edge.stop().await; // should not panic
+        let status = edge.get_status().await;
+        assert!(!status.running);
+    }
+}
+
 /// TLS certificate verifier that accepts any certificate (auth is via shared secret).
 #[derive(Debug)]
 struct NoCertVerifier;
--- a/rust/crates/remoteingress-core/src/hub.rs
+++ b/rust/crates/remoteingress-core/src/hub.rs
@@ -2,8 +2,9 @@ use std::collections::HashMap;
 use std::sync::Arc;
 use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
 use tokio::net::{TcpListener, TcpStream};
-use tokio::sync::{mpsc, Mutex, RwLock};
+use tokio::sync::{mpsc, Mutex, RwLock, Semaphore};
 use tokio_rustls::TlsAcceptor;
+use tokio_util::sync::CancellationToken;
 use serde::{Deserialize, Serialize};

 use remoteingress_protocol::*;
@@ -14,9 +15,9 @@ use remoteingress_protocol::*;
 pub struct HubConfig {
    pub tunnel_port: u16,
    pub target_host: Option<String>,
-    #[serde(skip)]
+    #[serde(default)]
    pub tls_cert_pem: Option<String>,
-    #[serde(skip)]
+    #[serde(default)]
    pub tls_key_pem: Option<String>,
 }

@@ -37,6 +38,24 @@ impl Default for HubConfig {
 pub struct AllowedEdge {
    pub id: String,
    pub secret: String,
+    #[serde(default)]
+    pub listen_ports: Vec<u16>,
+    pub stun_interval_secs: Option<u64>,
+}
+
+/// Handshake response sent to edge after authentication.
+#[derive(Debug, Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct HandshakeResponse {
+    listen_ports: Vec<u16>,
+    stun_interval_secs: u64,
+}
+
+/// Configuration update pushed to a connected edge at runtime.
+#[derive(Debug, Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct EdgeConfigUpdate {
+    pub listen_ports: Vec<u16>,
 }

 /// Runtime status of a connected edge.
@@ -46,6 +65,7 @@ pub struct ConnectedEdgeStatus {
    pub edge_id: String,
    pub connected_at: u64,
    pub active_streams: usize,
+    pub peer_addr: String,
 }

 /// Events emitted by the hub.
@@ -54,7 +74,7 @@ pub struct ConnectedEdgeStatus {
 #[serde(tag = "type")]
 pub enum HubEvent {
    #[serde(rename_all = "camelCase")]
-    EdgeConnected { edge_id: String },
+    EdgeConnected { edge_id: String, peer_addr: String },
    #[serde(rename_all = "camelCase")]
    EdgeDisconnected { edge_id: String },
    #[serde(rename_all = "camelCase")]
@@ -75,22 +95,27 @@ pub struct HubStatus {
 /// The tunnel hub that accepts edge connections and demuxes streams to SmartProxy.
 pub struct TunnelHub {
    config: RwLock<HubConfig>,
-    allowed_edges: Arc<RwLock<HashMap<String, String>>>, // id -> secret
+    allowed_edges: Arc<RwLock<HashMap<String, AllowedEdge>>>,
    connected_edges: Arc<Mutex<HashMap<String, ConnectedEdgeInfo>>>,
-    event_tx: mpsc::UnboundedSender<HubEvent>,
-    event_rx: Mutex<Option<mpsc::UnboundedReceiver<HubEvent>>>,
+    event_tx: mpsc::Sender<HubEvent>,
+    event_rx: Mutex<Option<mpsc::Receiver<HubEvent>>>,
    shutdown_tx: Mutex<Option<mpsc::Sender<()>>>,
    running: RwLock<bool>,
+    cancel_token: CancellationToken,
 }

 struct ConnectedEdgeInfo {
    connected_at: u64,
-    active_streams: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
+    peer_addr: String,
+    active_streams: Arc<Mutex<HashMap<u32, (mpsc::Sender<Vec<u8>>, CancellationToken)>>>,
+    config_tx: mpsc::Sender<EdgeConfigUpdate>,
+    #[allow(dead_code)] // kept alive for Drop — cancels child tokens when edge is removed
+    cancel_token: CancellationToken,
 }

 impl TunnelHub {
    pub fn new(config: HubConfig) -> Self {
-        let (event_tx, event_rx) = mpsc::unbounded_channel();
+        let (event_tx, event_rx) = mpsc::channel(1024);
        Self {
            config: RwLock::new(config),
            allowed_edges: Arc::new(RwLock::new(HashMap::new())),
@@ -99,21 +124,45 @@ impl TunnelHub {
            event_rx: Mutex::new(Some(event_rx)),
            shutdown_tx: Mutex::new(None),
            running: RwLock::new(false),
+            cancel_token: CancellationToken::new(),
        }
    }

    /// Take the event receiver (can only be called once).
-    pub async fn take_event_rx(&self) -> Option<mpsc::UnboundedReceiver<HubEvent>> {
+    pub async fn take_event_rx(&self) -> Option<mpsc::Receiver<HubEvent>> {
        self.event_rx.lock().await.take()
    }

    /// Update the list of allowed edges.
+    /// For any currently-connected edge whose ports changed, push a config update.
    pub async fn update_allowed_edges(&self, edges: Vec<AllowedEdge>) {
        let mut map = self.allowed_edges.write().await;
-        map.clear();
-        for edge in edges {
-            map.insert(edge.id, edge.secret);
+
+        // Build new map
+        let mut new_map = HashMap::new();
+        for edge in &edges {
+            new_map.insert(edge.id.clone(), edge.clone());
        }
+
+        // Push config updates to connected edges whose ports changed
+        let connected = self.connected_edges.lock().await;
+        for edge in &edges {
+            if let Some(info) = connected.get(&edge.id) {
+                // Check if ports changed compared to old config
+                let ports_changed = match map.get(&edge.id) {
+                    Some(old) => old.listen_ports != edge.listen_ports,
+                    None => true, // newly allowed edge that's already connected
+                };
+                if ports_changed {
+                    let update = EdgeConfigUpdate {
+                        listen_ports: edge.listen_ports.clone(),
+                    };
+                    let _ = info.config_tx.try_send(update);
+                }
+            }
+        }
+
+        *map = new_map;
    }

    /// Get the current hub status.
@@ -129,6 +178,7 @@ impl TunnelHub {
                edge_id: id.clone(),
                connected_at: info.connected_at,
                active_streams: streams.len(),
+                peer_addr: info.peer_addr.clone(),
            });
        }

@@ -156,6 +206,7 @@ impl TunnelHub {
        let connected = self.connected_edges.clone();
        let event_tx = self.event_tx.clone();
        let target_host = config.target_host.unwrap_or_else(|| "127.0.0.1".to_string());
+        let hub_token = self.cancel_token.clone();

        tokio::spawn(async move {
            loop {
@@ -169,9 +220,11 @@ impl TunnelHub {
                                let connected = connected.clone();
                                let event_tx = event_tx.clone();
                                let target = target_host.clone();
+                                let edge_token = hub_token.child_token();
+                                let peer_addr = addr.ip().to_string();
                                tokio::spawn(async move {
                                    if let Err(e) = handle_edge_connection(
-                                        stream, acceptor, allowed, connected, event_tx, target,
+                                        stream, acceptor, allowed, connected, event_tx, target, edge_token, peer_addr,
                                    ).await {
                                        log::error!("Edge connection error: {}", e);
                                    }
@@ -182,6 +235,10 @@ impl TunnelHub {
                            }
                        }
                    }
+                    _ = hub_token.cancelled() => {
+                        log::info!("Hub shutting down (token cancelled)");
+                        break;
+                    }
                    _ = shutdown_rx.recv() => {
                        log::info!("Hub shutting down");
                        break;
@@ -195,6 +252,7 @@ impl TunnelHub {

    /// Stop the hub.
    pub async fn stop(&self) {
+        self.cancel_token.cancel();
        if let Some(tx) = self.shutdown_tx.lock().await.take() {
            let _ = tx.send(()).await;
        }
@@ -204,17 +262,28 @@ impl TunnelHub {
    }
 }

+impl Drop for TunnelHub {
+    fn drop(&mut self) {
+        self.cancel_token.cancel();
+    }
+}
+
+/// Maximum concurrent streams per edge connection.
+const MAX_STREAMS_PER_EDGE: usize = 1024;
+
 /// Handle a single edge connection: authenticate, then enter frame loop.
 async fn handle_edge_connection(
    stream: TcpStream,
    acceptor: TlsAcceptor,
-    allowed: Arc<RwLock<HashMap<String, String>>>,
+    allowed: Arc<RwLock<HashMap<String, AllowedEdge>>>,
    connected: Arc<Mutex<HashMap<String, ConnectedEdgeInfo>>>,
-    event_tx: mpsc::UnboundedSender<HubEvent>,
+    event_tx: mpsc::Sender<HubEvent>,
    target_host: String,
+    edge_token: CancellationToken,
+    peer_addr: String,
 ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    let tls_stream = acceptor.accept(stream).await?;
-    let (read_half, write_half) = tokio::io::split(tls_stream);
+    let (read_half, mut write_half) = tokio::io::split(tls_stream);
    let mut buf_reader = BufReader::new(read_half);

    // Read auth line: "EDGE <edgeId> <secret>\n"
@@ -230,179 +299,309 @@ async fn handle_edge_connection(
    let edge_id = parts[1].to_string();
    let secret = parts[2];

-    // Verify credentials
-    {
+    // Verify credentials and extract edge config
+    let (listen_ports, stun_interval_secs) = {
        let edges = allowed.read().await;
        match edges.get(&edge_id) {
-            Some(expected) => {
-                if !constant_time_eq(secret.as_bytes(), expected.as_bytes()) {
+            Some(edge) => {
+                if !constant_time_eq(secret.as_bytes(), edge.secret.as_bytes()) {
                    return Err(format!("invalid secret for edge {}", edge_id).into());
                }
+                (edge.listen_ports.clone(), edge.stun_interval_secs.unwrap_or(300))
            }
            None => {
                return Err(format!("unknown edge {}", edge_id).into());
            }
        }
-    }
+    };

-    log::info!("Edge {} authenticated", edge_id);
-    let _ = event_tx.send(HubEvent::EdgeConnected {
+    log::info!("Edge {} authenticated from {}", edge_id, peer_addr);
+    let _ = event_tx.try_send(HubEvent::EdgeConnected {
        edge_id: edge_id.clone(),
+        peer_addr: peer_addr.clone(),
    });

+    // Send handshake response with initial config before frame protocol begins
+    let handshake = HandshakeResponse {
+        listen_ports: listen_ports.clone(),
+        stun_interval_secs,
+    };
+    let mut handshake_json = serde_json::to_string(&handshake)?;
+    handshake_json.push('\n');
+    write_half.write_all(handshake_json.as_bytes()).await?;
+
    // Track this edge
-    let streams: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>> =
+    let streams: Arc<Mutex<HashMap<u32, (mpsc::Sender<Vec<u8>>, CancellationToken)>>> =
        Arc::new(Mutex::new(HashMap::new()));
    let now = std::time::SystemTime::now()
        .duration_since(std::time::UNIX_EPOCH)
        .unwrap_or_default()
        .as_secs();

+    // Create config update channel
+    let (config_tx, mut config_rx) = mpsc::channel::<EdgeConfigUpdate>(16);
+
    {
        let mut edges = connected.lock().await;
        edges.insert(
            edge_id.clone(),
            ConnectedEdgeInfo {
                connected_at: now,
+                peer_addr,
                active_streams: streams.clone(),
+                config_tx,
+                cancel_token: edge_token.clone(),
            },
        );
    }

-    // Shared writer for sending frames back to edge
-    let write_half = Arc::new(Mutex::new(write_half));
+    // A5: Channel-based writer replaces Arc<Mutex<WriteHalf>>
+    // All frame writes go through this channel → dedicated writer task serializes them
+    let (frame_writer_tx, mut frame_writer_rx) = mpsc::channel::<Vec<u8>>(4096);
+    let writer_token = edge_token.clone();
+    let writer_handle = tokio::spawn(async move {
+        loop {
+            tokio::select! {
+                data = frame_writer_rx.recv() => {
+                    match data {
+                        Some(frame_data) => {
+                            if write_half.write_all(&frame_data).await.is_err() {
+                                break;
+                            }
+                        }
+                        None => break,
+                    }
+                }
+                _ = writer_token.cancelled() => break,
+            }
+        }
+    });
+
+    // Spawn task to forward config updates as FRAME_CONFIG frames
+    let config_writer_tx = frame_writer_tx.clone();
+    let config_edge_id = edge_id.clone();
+    let config_token = edge_token.clone();
+    let config_handle = tokio::spawn(async move {
+        loop {
+            tokio::select! {
+                update = config_rx.recv() => {
+                    match update {
+                        Some(update) => {
+                            if let Ok(payload) = serde_json::to_vec(&update) {
+                                let frame = encode_frame(0, FRAME_CONFIG, &payload);
+                                if config_writer_tx.send(frame).await.is_err() {
+                                    log::error!("Failed to send config update to edge {}", config_edge_id);
+                                    break;
+                                }
+                                log::info!("Sent config update to edge {}: ports {:?}", config_edge_id, update.listen_ports);
+                            }
+                        }
+                        None => break,
+                    }
+                }
+                _ = config_token.cancelled() => break,
+            }
+        }
+    });
+
+    // A4: Semaphore to limit concurrent streams per edge
+    let stream_semaphore = Arc::new(Semaphore::new(MAX_STREAMS_PER_EDGE));

    // Frame reading loop
    let mut frame_reader = FrameReader::new(buf_reader);

    loop {
-        match frame_reader.next_frame().await {
-            Ok(Some(frame)) => {
-                match frame.frame_type {
-                    FRAME_OPEN => {
-                        // Payload is PROXY v1 header line
-                        let proxy_header = String::from_utf8_lossy(&frame.payload).to_string();
-
-                        // Parse destination port from PROXY header
-                        let dest_port = parse_dest_port_from_proxy(&proxy_header).unwrap_or(443);
-
-                        let stream_id = frame.stream_id;
-                        let edge_id_clone = edge_id.clone();
-                        let event_tx_clone = event_tx.clone();
-                        let streams_clone = streams.clone();
-                        let writer_clone = write_half.clone();
-                        let target = target_host.clone();
-
-                        let _ = event_tx.send(HubEvent::StreamOpened {
-                            edge_id: edge_id.clone(),
-                            stream_id,
-                        });
-
-                        // Create channel for data from edge to this stream
-                        let (data_tx, mut data_rx) = mpsc::channel::<Vec<u8>>(256);
-                        {
-                            let mut s = streams.lock().await;
-                            s.insert(stream_id, data_tx);
-                        }
-
-                        // Spawn task: connect to SmartProxy, send PROXY header, pipe data
-                        tokio::spawn(async move {
-                            let result = async {
-                                let mut upstream =
-                                    TcpStream::connect((target.as_str(), dest_port)).await?;
-                                upstream.write_all(proxy_header.as_bytes()).await?;
-
-                                let (mut up_read, mut up_write) =
-                                    upstream.into_split();
-
-                                // Forward data from edge (via channel) to SmartProxy
-                                let writer_for_edge_data = tokio::spawn(async move {
-                                    while let Some(data) = data_rx.recv().await {
-                                        if up_write.write_all(&data).await.is_err() {
-                                            break;
-                                        }
+        tokio::select! {
+            frame_result = frame_reader.next_frame() => {
+                match frame_result {
+                    Ok(Some(frame)) => {
+                        match frame.frame_type {
+                            FRAME_OPEN => {
+                                // A4: Check stream limit before processing
+                                let permit = match stream_semaphore.clone().try_acquire_owned() {
+                                    Ok(p) => p,
+                                    Err(_) => {
+                                        log::warn!("Edge {} exceeded max streams ({}), rejecting stream {}",
+                                            edge_id, MAX_STREAMS_PER_EDGE, frame.stream_id);
+                                        let close_frame = encode_frame(frame.stream_id, FRAME_CLOSE_BACK, &[]);
+                                        let _ = frame_writer_tx.try_send(close_frame);
+                                        continue;
                                    }
-                                    let _ = up_write.shutdown().await;
+                                };
+
+                                // Payload is PROXY v1 header line
+                                let proxy_header = String::from_utf8_lossy(&frame.payload).to_string();
+
+                                // Parse destination port from PROXY header
+                                let dest_port = parse_dest_port_from_proxy(&proxy_header).unwrap_or(443);
+
+                                let stream_id = frame.stream_id;
+                                let edge_id_clone = edge_id.clone();
+                                let event_tx_clone = event_tx.clone();
+                                let streams_clone = streams.clone();
+                                let writer_tx = frame_writer_tx.clone();
+                                let target = target_host.clone();
+                                let stream_token = edge_token.child_token();
+
+                                let _ = event_tx.try_send(HubEvent::StreamOpened {
+                                    edge_id: edge_id.clone(),
+                                    stream_id,
                                });

-                                // Forward data from SmartProxy back to edge
-                                let mut buf = vec![0u8; 32768];
-                                loop {
-                                    match up_read.read(&mut buf).await {
-                                        Ok(0) => break,
-                                        Ok(n) => {
-                                            let frame =
-                                                encode_frame(stream_id, FRAME_DATA_BACK, &buf[..n]);
-                                            let mut w = writer_clone.lock().await;
-                                            if w.write_all(&frame).await.is_err() {
-                                                break;
-                                            }
-                                        }
-                                        Err(_) => break,
-                                    }
+                                // Create channel for data from edge to this stream
+                                let (data_tx, mut data_rx) = mpsc::channel::<Vec<u8>>(256);
+                                {
+                                    let mut s = streams.lock().await;
+                                    s.insert(stream_id, (data_tx, stream_token.clone()));
                                }

-                                // Send CLOSE_BACK to edge
-                                let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
-                                let mut w = writer_clone.lock().await;
-                                let _ = w.write_all(&close_frame).await;
+                                // Spawn task: connect to SmartProxy, send PROXY header, pipe data
+                                tokio::spawn(async move {
+                                    let _permit = permit; // hold semaphore permit until stream completes

-                                writer_for_edge_data.abort();
-                                Ok::<(), Box<dyn std::error::Error + Send + Sync>>(())
-                            }
-                            .await;
+                                    let result = async {
+                                        // A2: Connect to SmartProxy with timeout
+                                        let mut upstream = tokio::time::timeout(
+                                            std::time::Duration::from_secs(10),
+                                            TcpStream::connect((target.as_str(), dest_port)),
+                                        )
+                                        .await
+                                        .map_err(|_| -> Box<dyn std::error::Error + Send + Sync> {
+                                            format!("connect to SmartProxy {}:{} timed out (10s)", target, dest_port).into()
+                                        })??;

-                            if let Err(e) = result {
-                                log::error!("Stream {} error: {}", stream_id, e);
-                                // Send CLOSE_BACK on error
-                                let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
-                                let mut w = writer_clone.lock().await;
-                                let _ = w.write_all(&close_frame).await;
-                            }
+                                        upstream.write_all(proxy_header.as_bytes()).await?;

-                            // Clean up stream
-                            {
-                                let mut s = streams_clone.lock().await;
-                                s.remove(&stream_id);
+                                        let (mut up_read, mut up_write) =
+                                            upstream.into_split();
+
+                                        // Forward data from edge (via channel) to SmartProxy
+                                        let writer_token = stream_token.clone();
+                                        let writer_for_edge_data = tokio::spawn(async move {
+                                            loop {
+                                                tokio::select! {
+                                                    data = data_rx.recv() => {
+                                                        match data {
+                                                            Some(data) => {
+                                                                if up_write.write_all(&data).await.is_err() {
+                                                                    break;
+                                                                }
+                                                            }
+                                                            None => break,
+                                                        }
+                                                    }
+                                                    _ = writer_token.cancelled() => break,
+                                                }
+                                            }
+                                            let _ = up_write.shutdown().await;
+                                        });
+
+                                        // Forward data from SmartProxy back to edge via writer channel
+                                        let mut buf = vec![0u8; 32768];
+                                        loop {
+                                            tokio::select! {
+                                                read_result = up_read.read(&mut buf) => {
+                                                    match read_result {
+                                                        Ok(0) => break,
+                                                        Ok(n) => {
+                                                            let frame =
+                                                                encode_frame(stream_id, FRAME_DATA_BACK, &buf[..n]);
+                                                            // A5: Use try_send to avoid blocking if writer channel is full
+                                                            if writer_tx.try_send(frame).is_err() {
+                                                                log::warn!("Stream {} writer channel full, closing", stream_id);
+                                                                break;
+                                                            }
+                                                        }
+                                                        Err(_) => break,
+                                                    }
+                                                }
+                                                _ = stream_token.cancelled() => break,
+                                            }
+                                        }
+
+                                        // Send CLOSE_BACK to edge (only if not cancelled)
+                                        if !stream_token.is_cancelled() {
+                                            let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
+                                            let _ = writer_tx.try_send(close_frame);
+                                        }
+
+                                        writer_for_edge_data.abort();
+                                        Ok::<(), Box<dyn std::error::Error + Send + Sync>>(())
+                                    }
+                                    .await;
+
+                                    if let Err(e) = result {
+                                        log::error!("Stream {} error: {}", stream_id, e);
+                                        // Send CLOSE_BACK on error (only if not cancelled)
+                                        if !stream_token.is_cancelled() {
+                                            let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
+                                            let _ = writer_tx.try_send(close_frame);
+                                        }
+                                    }
+
+                                    // Clean up stream (guard against duplicate if FRAME_CLOSE already removed it)
+                                    let was_present = {
+                                        let mut s = streams_clone.lock().await;
+                                        s.remove(&stream_id).is_some()
+                                    };
+                                    if was_present {
+                                        let _ = event_tx_clone.try_send(HubEvent::StreamClosed {
+                                            edge_id: edge_id_clone,
+                                            stream_id,
+                                        });
+                                    }
+                                });
+                            }
+                            FRAME_DATA => {
+                                // A1: Non-blocking send to prevent head-of-line blocking
+                                let s = streams.lock().await;
+                                if let Some((tx, _)) = s.get(&frame.stream_id) {
+                                    if tx.try_send(frame.payload).is_err() {
+                                        log::warn!("Stream {} data channel full, dropping frame", frame.stream_id);
+                                    }
+                                }
+                            }
+                            FRAME_CLOSE => {
+                                let mut s = streams.lock().await;
+                                if let Some((_, token)) = s.remove(&frame.stream_id) {
+                                    token.cancel();
+                                    let _ = event_tx.try_send(HubEvent::StreamClosed {
+                                        edge_id: edge_id.clone(),
+                                        stream_id: frame.stream_id,
+                                    });
+                                }
+                            }
+                            _ => {
+                                log::warn!("Unexpected frame type {} from edge", frame.frame_type);
                            }
-                            let _ = event_tx_clone.send(HubEvent::StreamClosed {
-                                edge_id: edge_id_clone,
-                                stream_id,
-                            });
-                        });
-                    }
-                    FRAME_DATA => {
-                        let s = streams.lock().await;
-                        if let Some(tx) = s.get(&frame.stream_id) {
-                            let _ = tx.send(frame.payload).await;
                        }
                    }
-                    FRAME_CLOSE => {
-                        let mut s = streams.lock().await;
-                        s.remove(&frame.stream_id);
+                    Ok(None) => {
+                        log::info!("Edge {} disconnected (EOF)", edge_id);
+                        break;
                    }
-                    _ => {
-                        log::warn!("Unexpected frame type {} from edge", frame.frame_type);
+                    Err(e) => {
+                        log::error!("Edge {} frame error: {}", edge_id, e);
+                        break;
                    }
                }
            }
-            Ok(None) => {
-                log::info!("Edge {} disconnected (EOF)", edge_id);
-                break;
-            }
-            Err(e) => {
-                log::error!("Edge {} frame error: {}", edge_id, e);
+            _ = edge_token.cancelled() => {
+                log::info!("Edge {} cancelled by hub", edge_id);
                break;
            }
        }
    }

-    // Cleanup
+    // Cleanup: cancel edge token to propagate to all child tasks
+    edge_token.cancel();
+    config_handle.abort();
+    writer_handle.abort();
    {
        let mut edges = connected.lock().await;
        edges.remove(&edge_id);
    }
-    let _ = event_tx.send(HubEvent::EdgeDisconnected {
+    let _ = event_tx.try_send(HubEvent::EdgeDisconnected {
        edge_id: edge_id.clone(),
    });

@@ -475,3 +674,212 @@ fn constant_time_eq(a: &[u8], b: &[u8]) -> bool {
    }
    diff == 0
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // --- constant_time_eq tests ---
+
+    #[test]
+    fn test_constant_time_eq_equal() {
+        assert!(constant_time_eq(b"hello", b"hello"));
+    }
+
+    #[test]
+    fn test_constant_time_eq_different_content() {
+        assert!(!constant_time_eq(b"hello", b"world"));
+    }
+
+    #[test]
+    fn test_constant_time_eq_different_lengths() {
+        assert!(!constant_time_eq(b"short", b"longer"));
+    }
+
+    #[test]
+    fn test_constant_time_eq_both_empty() {
+        assert!(constant_time_eq(b"", b""));
+    }
+
+    #[test]
+    fn test_constant_time_eq_one_empty() {
+        assert!(!constant_time_eq(b"", b"notempty"));
+    }
+
+    #[test]
+    fn test_constant_time_eq_single_bit_difference() {
+        // 'A' = 0x41, 'a' = 0x61 — differ by one bit
+        assert!(!constant_time_eq(b"A", b"a"));
+    }
+
+    // --- parse_dest_port_from_proxy tests ---
+
+    #[test]
+    fn test_parse_dest_port_443() {
+        let header = "PROXY TCP4 1.2.3.4 5.6.7.8 12345 443\r\n";
+        assert_eq!(parse_dest_port_from_proxy(header), Some(443));
+    }
+
+    #[test]
+    fn test_parse_dest_port_80() {
+        let header = "PROXY TCP4 10.0.0.1 10.0.0.2 54321 80\r\n";
+        assert_eq!(parse_dest_port_from_proxy(header), Some(80));
+    }
+
+    #[test]
+    fn test_parse_dest_port_65535() {
+        let header = "PROXY TCP4 10.0.0.1 10.0.0.2 1 65535\r\n";
+        assert_eq!(parse_dest_port_from_proxy(header), Some(65535));
+    }
+
+    #[test]
+    fn test_parse_dest_port_too_few_fields() {
+        let header = "PROXY TCP4 1.2.3.4";
+        assert_eq!(parse_dest_port_from_proxy(header), None);
+    }
+
+    #[test]
+    fn test_parse_dest_port_empty_string() {
+        assert_eq!(parse_dest_port_from_proxy(""), None);
+    }
+
+    #[test]
+    fn test_parse_dest_port_non_numeric() {
+        let header = "PROXY TCP4 1.2.3.4 5.6.7.8 12345 abc\r\n";
+        assert_eq!(parse_dest_port_from_proxy(header), None);
+    }
+
+    // --- Serde tests ---
+
+    #[test]
+    fn test_allowed_edge_deserialize_all_fields() {
+        let json = r#"{
+            "id": "edge-1",
+            "secret": "s3cret",
+            "listenPorts": [443, 8080],
+            "stunIntervalSecs": 120
+        }"#;
+        let edge: AllowedEdge = serde_json::from_str(json).unwrap();
+        assert_eq!(edge.id, "edge-1");
+        assert_eq!(edge.secret, "s3cret");
+        assert_eq!(edge.listen_ports, vec![443, 8080]);
+        assert_eq!(edge.stun_interval_secs, Some(120));
+    }
+
+    #[test]
+    fn test_allowed_edge_deserialize_with_defaults() {
+        let json = r#"{"id": "edge-2", "secret": "key"}"#;
+        let edge: AllowedEdge = serde_json::from_str(json).unwrap();
+        assert_eq!(edge.id, "edge-2");
+        assert_eq!(edge.secret, "key");
+        assert!(edge.listen_ports.is_empty());
+        assert_eq!(edge.stun_interval_secs, None);
+    }
+
+    #[test]
+    fn test_handshake_response_serializes_camel_case() {
+        let resp = HandshakeResponse {
+            listen_ports: vec![443, 8080],
+            stun_interval_secs: 300,
+        };
+        let json = serde_json::to_value(&resp).unwrap();
+        assert_eq!(json["listenPorts"], serde_json::json!([443, 8080]));
+        assert_eq!(json["stunIntervalSecs"], 300);
+        // Ensure snake_case keys are NOT present
+        assert!(json.get("listen_ports").is_none());
+        assert!(json.get("stun_interval_secs").is_none());
+    }
+
+    #[test]
+    fn test_edge_config_update_serializes_camel_case() {
+        let update = EdgeConfigUpdate {
+            listen_ports: vec![80, 443],
+        };
+        let json = serde_json::to_value(&update).unwrap();
+        assert_eq!(json["listenPorts"], serde_json::json!([80, 443]));
+        assert!(json.get("listen_ports").is_none());
+    }
+
+    #[test]
+    fn test_hub_config_default() {
+        let config = HubConfig::default();
+        assert_eq!(config.tunnel_port, 8443);
+        assert_eq!(config.target_host, Some("127.0.0.1".to_string()));
+        assert!(config.tls_cert_pem.is_none());
+        assert!(config.tls_key_pem.is_none());
+    }
+
+    #[test]
+    fn test_hub_event_edge_connected_serialize() {
+        let event = HubEvent::EdgeConnected {
+            edge_id: "edge-1".to_string(),
+            peer_addr: "203.0.113.5".to_string(),
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "edgeConnected");
+        assert_eq!(json["edgeId"], "edge-1");
+        assert_eq!(json["peerAddr"], "203.0.113.5");
+    }
+
+    #[test]
+    fn test_hub_event_edge_disconnected_serialize() {
+        let event = HubEvent::EdgeDisconnected {
+            edge_id: "edge-2".to_string(),
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "edgeDisconnected");
+        assert_eq!(json["edgeId"], "edge-2");
+    }
+
+    #[test]
+    fn test_hub_event_stream_opened_serialize() {
+        let event = HubEvent::StreamOpened {
+            edge_id: "e".to_string(),
+            stream_id: 42,
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "streamOpened");
+        assert_eq!(json["edgeId"], "e");
+        assert_eq!(json["streamId"], 42);
+    }
+
+    #[test]
+    fn test_hub_event_stream_closed_serialize() {
+        let event = HubEvent::StreamClosed {
+            edge_id: "e".to_string(),
+            stream_id: 7,
+        };
+        let json = serde_json::to_value(&event).unwrap();
+        assert_eq!(json["type"], "streamClosed");
+        assert_eq!(json["edgeId"], "e");
+        assert_eq!(json["streamId"], 7);
+    }
+
+    // --- Async tests ---
+
+    #[tokio::test]
+    async fn test_tunnel_hub_new_get_status() {
+        let hub = TunnelHub::new(HubConfig::default());
+        let status = hub.get_status().await;
+        assert!(!status.running);
+        assert!(status.connected_edges.is_empty());
+        assert_eq!(status.tunnel_port, 8443);
+    }
+
+    #[tokio::test]
+    async fn test_tunnel_hub_take_event_rx() {
+        let hub = TunnelHub::new(HubConfig::default());
+        let rx1 = hub.take_event_rx().await;
+        assert!(rx1.is_some());
+        let rx2 = hub.take_event_rx().await;
+        assert!(rx2.is_none());
+    }
+
+    #[tokio::test]
+    async fn test_tunnel_hub_stop_without_start() {
+        let hub = TunnelHub::new(HubConfig::default());
+        hub.stop().await; // should not panic
+        let status = hub.get_status().await;
+        assert!(!status.running);
+    }
+}
--- a/rust/crates/remoteingress-core/src/stun.rs
+++ b/rust/crates/remoteingress-core/src/stun.rs
@@ -121,6 +121,133 @@ fn parse_stun_response(data: &[u8], _txn_id: &[u8; 12]) -> Option<String> {
    None
 }

+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /// Build a synthetic STUN Binding Response with given attributes.
+    fn build_stun_response(attrs: &[(u16, &[u8])]) -> Vec<u8> {
+        let mut attrs_bytes = Vec::new();
+        for &(attr_type, attr_data) in attrs {
+            attrs_bytes.extend_from_slice(&attr_type.to_be_bytes());
+            attrs_bytes.extend_from_slice(&(attr_data.len() as u16).to_be_bytes());
+            attrs_bytes.extend_from_slice(attr_data);
+            // Pad to 4-byte boundary
+            let pad = (4 - (attr_data.len() % 4)) % 4;
+            attrs_bytes.extend(std::iter::repeat(0u8).take(pad));
+        }
+
+        let mut response = Vec::new();
+        // msg_type = 0x0101 (Binding Response)
+        response.extend_from_slice(&0x0101u16.to_be_bytes());
+        // message length
+        response.extend_from_slice(&(attrs_bytes.len() as u16).to_be_bytes());
+        // magic cookie
+        response.extend_from_slice(&STUN_MAGIC_COOKIE.to_be_bytes());
+        // transaction ID (12 bytes)
+        response.extend_from_slice(&[0u8; 12]);
+        // attributes
+        response.extend_from_slice(&attrs_bytes);
+        response
+    }
+
+    #[test]
+    fn test_xor_mapped_address_ipv4() {
+        // IP 203.0.113.1 = 0xCB007101, XOR'd with magic 0x2112A442 = 0xEA12D543
+        let attr_data: [u8; 8] = [
+            0x00, 0x01, // reserved + family (IPv4)
+            0x11, 0x2B, // port XOR'd with 0x2112 (port 0x3039 = 12345)
+            0xEA, 0x12, 0xD5, 0x43, // IP XOR'd
+        ];
+        let data = build_stun_response(&[(ATTR_XOR_MAPPED_ADDRESS, &attr_data)]);
+        let txn_id = [0u8; 12];
+        let result = parse_stun_response(&data, &txn_id);
+        assert_eq!(result, Some("203.0.113.1".to_string()));
+    }
+
+    #[test]
+    fn test_mapped_address_fallback_ipv4() {
+        // IP 192.168.1.1 = 0xC0A80101 (no XOR)
+        let attr_data: [u8; 8] = [
+            0x00, 0x01, // reserved + family (IPv4)
+            0x00, 0x50, // port 80
+            0xC0, 0xA8, 0x01, 0x01, // IP
+        ];
+        let data = build_stun_response(&[(ATTR_MAPPED_ADDRESS, &attr_data)]);
+        let txn_id = [0u8; 12];
+        let result = parse_stun_response(&data, &txn_id);
+        assert_eq!(result, Some("192.168.1.1".to_string()));
+    }
+
+    #[test]
+    fn test_response_too_short() {
+        let data = vec![0u8; 19]; // < 20 bytes
+        let txn_id = [0u8; 12];
+        assert_eq!(parse_stun_response(&data, &txn_id), None);
+    }
+
+    #[test]
+    fn test_wrong_msg_type() {
+        // Build with correct helper then overwrite msg_type to 0x0001 (Binding Request)
+        let mut data = build_stun_response(&[]);
+        data[0] = 0x00;
+        data[1] = 0x01;
+        let txn_id = [0u8; 12];
+        assert_eq!(parse_stun_response(&data, &txn_id), None);
+    }
+
+    #[test]
+    fn test_no_mapped_address_attributes() {
+        // Valid response with no attributes
+        let data = build_stun_response(&[]);
+        let txn_id = [0u8; 12];
+        assert_eq!(parse_stun_response(&data, &txn_id), None);
+    }
+
+    #[test]
+    fn test_xor_preferred_over_mapped() {
+        // XOR gives 203.0.113.1, MAPPED gives 192.168.1.1
+        let xor_data: [u8; 8] = [
+            0x00, 0x01,
+            0x11, 0x2B,
+            0xEA, 0x12, 0xD5, 0x43,
+        ];
+        let mapped_data: [u8; 8] = [
+            0x00, 0x01,
+            0x00, 0x50,
+            0xC0, 0xA8, 0x01, 0x01,
+        ];
+        // XOR listed first — should be preferred
+        let data = build_stun_response(&[
+            (ATTR_XOR_MAPPED_ADDRESS, &xor_data),
+            (ATTR_MAPPED_ADDRESS, &mapped_data),
+        ]);
+        let txn_id = [0u8; 12];
+        let result = parse_stun_response(&data, &txn_id);
+        assert_eq!(result, Some("203.0.113.1".to_string()));
+    }
+
+    #[test]
+    fn test_truncated_attribute_data() {
+        // Attribute claims 8 bytes but only 4 are present
+        let mut data = build_stun_response(&[]);
+        // Manually append a truncated XOR_MAPPED_ADDRESS attribute
+        let attr_type = ATTR_XOR_MAPPED_ADDRESS.to_be_bytes();
+        let attr_len = 8u16.to_be_bytes(); // claims 8 bytes
+        let truncated = [0x00, 0x01, 0x11, 0x2B]; // only 4 bytes
+        // Update message length
+        let new_msg_len = (attr_type.len() + attr_len.len() + truncated.len()) as u16;
+        data[2..4].copy_from_slice(&new_msg_len.to_be_bytes());
+        data.extend_from_slice(&attr_type);
+        data.extend_from_slice(&attr_len);
+        data.extend_from_slice(&truncated);
+
+        let txn_id = [0u8; 12];
+        // Should return None, not panic
+        assert_eq!(parse_stun_response(&data, &txn_id), None);
+    }
+}
+
 /// Generate 12 random bytes for transaction ID.
 fn rand_bytes() -> [u8; 12] {
    let mut bytes = [0u8; 12];
--- a/rust/crates/remoteingress-protocol/src/lib.rs
+++ b/rust/crates/remoteingress-protocol/src/lib.rs
@@ -6,6 +6,7 @@ pub const FRAME_DATA: u8 = 0x02;
 pub const FRAME_CLOSE: u8 = 0x03;
 pub const FRAME_DATA_BACK: u8 = 0x04;
 pub const FRAME_CLOSE_BACK: u8 = 0x05;
+pub const FRAME_CONFIG: u8 = 0x06;     // Hub -> Edge: configuration update

 // Frame header size: 4 (stream_id) + 1 (type) + 4 (length) = 9 bytes
 pub const FRAME_HEADER_SIZE: usize = 9;
@@ -169,4 +170,127 @@ mod tests {
        // EOF
        assert!(reader.next_frame().await.unwrap().is_none());
    }
+
+    #[test]
+    fn test_encode_frame_config_type() {
+        let payload = b"{\"listenPorts\":[443]}";
+        let encoded = encode_frame(0, FRAME_CONFIG, payload);
+        assert_eq!(encoded[4], FRAME_CONFIG);
+        assert_eq!(&encoded[0..4], &0u32.to_be_bytes());
+        assert_eq!(&encoded[9..], payload.as_slice());
+    }
+
+    #[test]
+    fn test_encode_frame_data_back_type() {
+        let payload = b"response data";
+        let encoded = encode_frame(7, FRAME_DATA_BACK, payload);
+        assert_eq!(encoded[4], FRAME_DATA_BACK);
+        assert_eq!(&encoded[0..4], &7u32.to_be_bytes());
+        assert_eq!(&encoded[5..9], &(payload.len() as u32).to_be_bytes());
+        assert_eq!(&encoded[9..], payload.as_slice());
+    }
+
+    #[test]
+    fn test_encode_frame_close_back_type() {
+        let encoded = encode_frame(99, FRAME_CLOSE_BACK, &[]);
+        assert_eq!(encoded[4], FRAME_CLOSE_BACK);
+        assert_eq!(&encoded[0..4], &99u32.to_be_bytes());
+        assert_eq!(&encoded[5..9], &0u32.to_be_bytes());
+        assert_eq!(encoded.len(), FRAME_HEADER_SIZE);
+    }
+
+    #[test]
+    fn test_encode_frame_large_stream_id() {
+        let encoded = encode_frame(u32::MAX, FRAME_DATA, b"x");
+        assert_eq!(&encoded[0..4], &u32::MAX.to_be_bytes());
+        assert_eq!(encoded[4], FRAME_DATA);
+        assert_eq!(&encoded[5..9], &1u32.to_be_bytes());
+        assert_eq!(encoded[9], b'x');
+    }
+
+    #[tokio::test]
+    async fn test_frame_reader_max_payload_rejection() {
+        let mut data = Vec::new();
+        data.extend_from_slice(&1u32.to_be_bytes());
+        data.push(FRAME_DATA);
+        data.extend_from_slice(&(MAX_PAYLOAD_SIZE + 1).to_be_bytes());
+
+        let cursor = std::io::Cursor::new(data);
+        let mut reader = FrameReader::new(cursor);
+
+        let result = reader.next_frame().await;
+        assert!(result.is_err());
+        let err = result.unwrap_err();
+        assert_eq!(err.kind(), std::io::ErrorKind::InvalidData);
+    }
+
+    #[tokio::test]
+    async fn test_frame_reader_eof_mid_header() {
+        // Only 5 bytes — not enough for a 9-byte header
+        let data = vec![0u8; 5];
+        let cursor = std::io::Cursor::new(data);
+        let mut reader = FrameReader::new(cursor);
+
+        // Should return Ok(None) on partial header EOF
+        let result = reader.next_frame().await;
+        assert!(result.unwrap().is_none());
+    }
+
+    #[tokio::test]
+    async fn test_frame_reader_eof_mid_payload() {
+        // Full header claiming 100 bytes of payload, but only 10 bytes present
+        let mut data = Vec::new();
+        data.extend_from_slice(&1u32.to_be_bytes());
+        data.push(FRAME_DATA);
+        data.extend_from_slice(&100u32.to_be_bytes());
+        data.extend_from_slice(&[0xAB; 10]);
+
+        let cursor = std::io::Cursor::new(data);
+        let mut reader = FrameReader::new(cursor);
+
+        let result = reader.next_frame().await;
+        assert!(result.is_err());
+    }
+
+    #[tokio::test]
+    async fn test_frame_reader_all_frame_types() {
+        let types = [
+            FRAME_OPEN,
+            FRAME_DATA,
+            FRAME_CLOSE,
+            FRAME_DATA_BACK,
+            FRAME_CLOSE_BACK,
+            FRAME_CONFIG,
+        ];
+
+        let mut data = Vec::new();
+        for (i, &ft) in types.iter().enumerate() {
+            let payload = format!("payload_{}", i);
+            data.extend_from_slice(&encode_frame(i as u32, ft, payload.as_bytes()));
+        }
+
+        let cursor = std::io::Cursor::new(data);
+        let mut reader = FrameReader::new(cursor);
+
+        for (i, &ft) in types.iter().enumerate() {
+            let frame = reader.next_frame().await.unwrap().unwrap();
+            assert_eq!(frame.stream_id, i as u32);
+            assert_eq!(frame.frame_type, ft);
+            assert_eq!(frame.payload, format!("payload_{}", i).as_bytes());
+        }
+
+        assert!(reader.next_frame().await.unwrap().is_none());
+    }
+
+    #[tokio::test]
+    async fn test_frame_reader_zero_length_payload() {
+        let data = encode_frame(42, FRAME_CLOSE, &[]);
+        let cursor = std::io::Cursor::new(data);
+        let mut reader = FrameReader::new(cursor);
+
+        let frame = reader.next_frame().await.unwrap().unwrap();
+        assert_eq!(frame.stream_id, 42);
+        assert_eq!(frame.frame_type, FRAME_CLOSE);
+        assert!(frame.payload.is_empty());
+    }
 }
--- a/test/test.classes.node.ts
+++ b/test/test.classes.node.ts
@@ -0,0 +1,35 @@
+import { expect, tap } from '@push.rocks/tapbundle';
+import { EventEmitter } from 'events';
+import { RemoteIngressHub, RemoteIngressEdge } from '../ts/index.js';
+
+tap.test('RemoteIngressHub constructor does not throw', async () => {
+  const hub = new RemoteIngressHub();
+  expect(hub).toBeTruthy();
+});
+
+tap.test('RemoteIngressHub is instanceof EventEmitter', async () => {
+  const hub = new RemoteIngressHub();
+  expect(hub).toBeInstanceOf(EventEmitter);
+});
+
+tap.test('RemoteIngressHub.running is false before start', async () => {
+  const hub = new RemoteIngressHub();
+  expect(hub.running).toBeFalse();
+});
+
+tap.test('RemoteIngressEdge constructor does not throw', async () => {
+  const edge = new RemoteIngressEdge();
+  expect(edge).toBeTruthy();
+});
+
+tap.test('RemoteIngressEdge is instanceof EventEmitter', async () => {
+  const edge = new RemoteIngressEdge();
+  expect(edge).toBeInstanceOf(EventEmitter);
+});
+
+tap.test('RemoteIngressEdge.running is false before start', async () => {
+  const edge = new RemoteIngressEdge();
+  expect(edge.running).toBeFalse();
+});
+
+export default tap.start();
--- a/test/test.token.node.ts
+++ b/test/test.token.node.ts
@@ -0,0 +1,152 @@
+import { expect, tap } from '@push.rocks/tapbundle';
+import { encodeConnectionToken, decodeConnectionToken, type IConnectionTokenData } from '../ts/classes.token.js';
+
+tap.test('token roundtrip with unicode chars in secret', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'hub.example.com',
+    hubPort: 8443,
+    edgeId: 'edge-1',
+    secret: 'sécret-with-ünïcödé-日本語',
+  };
+  const token = encodeConnectionToken(data);
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.secret).toEqual(data.secret);
+});
+
+tap.test('token roundtrip with empty edgeId', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'hub.test',
+    hubPort: 443,
+    edgeId: '',
+    secret: 'key',
+  };
+  const token = encodeConnectionToken(data);
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.edgeId).toEqual('');
+});
+
+tap.test('token roundtrip with port 0', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'h',
+    hubPort: 0,
+    edgeId: 'e',
+    secret: 's',
+  };
+  const token = encodeConnectionToken(data);
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.hubPort).toEqual(0);
+});
+
+tap.test('token roundtrip with port 65535', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'h',
+    hubPort: 65535,
+    edgeId: 'e',
+    secret: 's',
+  };
+  const token = encodeConnectionToken(data);
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.hubPort).toEqual(65535);
+});
+
+tap.test('token roundtrip with very long secret (10k chars)', async () => {
+  const longSecret = 'x'.repeat(10000);
+  const data: IConnectionTokenData = {
+    hubHost: 'host',
+    hubPort: 1234,
+    edgeId: 'edge',
+    secret: longSecret,
+  };
+  const token = encodeConnectionToken(data);
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.secret).toEqual(longSecret);
+  expect(decoded.secret.length).toEqual(10000);
+});
+
+tap.test('token string is URL-safe', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'hub.example.com',
+    hubPort: 8443,
+    edgeId: 'edge-001',
+    secret: 'super+secret/key==with+special/chars',
+  };
+  const token = encodeConnectionToken(data);
+  expect(token).toMatch(/^[A-Za-z0-9_-]+$/);
+});
+
+tap.test('decode empty string throws', async () => {
+  let error: Error | undefined;
+  try {
+    decodeConnectionToken('');
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).toBeInstanceOf(Error);
+});
+
+tap.test('decode valid base64 but wrong JSON shape throws missing required fields', async () => {
+  // Encode { "a": 1, "b": 2 } — valid JSON but wrong shape
+  const token = Buffer.from(JSON.stringify({ a: 1, b: 2 }), 'utf-8')
+    .toString('base64')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_')
+    .replace(/=+$/, '');
+
+  let error: Error | undefined;
+  try {
+    decodeConnectionToken(token);
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).toBeInstanceOf(Error);
+  expect(error!.message).toInclude('missing required fields');
+});
+
+tap.test('decode valid JSON but wrong field types throws missing required fields', async () => {
+  // h is number instead of string, p is string instead of number
+  const token = Buffer.from(JSON.stringify({ h: 123, p: 'notnum', e: 'e', s: 's' }), 'utf-8')
+    .toString('base64')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_')
+    .replace(/=+$/, '');
+
+  let error: Error | undefined;
+  try {
+    decodeConnectionToken(token);
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).toBeInstanceOf(Error);
+  expect(error!.message).toInclude('missing required fields');
+});
+
+tap.test('decode with extra fields succeeds', async () => {
+  const token = Buffer.from(
+    JSON.stringify({ h: 'host', p: 443, e: 'edge', s: 'secret', extra: 'ignored' }),
+    'utf-8',
+  )
+    .toString('base64')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_')
+    .replace(/=+$/, '');
+
+  const decoded = decodeConnectionToken(token);
+  expect(decoded.hubHost).toEqual('host');
+  expect(decoded.hubPort).toEqual(443);
+  expect(decoded.edgeId).toEqual('edge');
+  expect(decoded.secret).toEqual('secret');
+});
+
+tap.test('encode is deterministic', async () => {
+  const data: IConnectionTokenData = {
+    hubHost: 'hub.test',
+    hubPort: 8443,
+    edgeId: 'edge-1',
+    secret: 'deterministic-key',
+  };
+  const token1 = encodeConnectionToken(data);
+  const token2 = encodeConnectionToken(data);
+  expect(token1).toEqual(token2);
+});
+
+export default tap.start();
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
 */
 export const commitinfo = {
  name: '@serve.zone/remoteingress',
-  version: '3.1.0',
+  version: '4.3.0',
  description: 'Edge ingress tunnel for DcRouter - accepts incoming TCP connections at network edge and tunnels them to DcRouter SmartProxy preserving client IP via PROXY protocol v1.'
 }
--- a/ts/classes.remoteingressedge.ts
+++ b/ts/classes.remoteingressedge.ts
@@ -43,6 +43,7 @@ export interface IEdgeConfig {
 export class RemoteIngressEdge extends EventEmitter {
  private bridge: InstanceType<typeof plugins.smartrust.RustBridge<TEdgeCommands>>;
  private started = false;
+  private statusInterval: ReturnType<typeof setInterval> | undefined;

  constructor() {
    super();
@@ -79,6 +80,14 @@ export class RemoteIngressEdge extends EventEmitter {
    this.bridge.on('management:publicIpDiscovered', (data: { ip: string }) => {
      this.emit('publicIpDiscovered', data);
    });
+    this.bridge.on('management:portsAssigned', (data: { listenPorts: number[] }) => {
+      console.log(`[RemoteIngressEdge] Ports assigned by hub: ${data.listenPorts.join(', ')}`);
+      this.emit('portsAssigned', data);
+    });
+    this.bridge.on('management:portsUpdated', (data: { listenPorts: number[] }) => {
+      console.log(`[RemoteIngressEdge] Ports updated by hub: ${data.listenPorts.join(', ')}`);
+      this.emit('portsUpdated', data);
+    });
  }

  /**
@@ -113,12 +122,30 @@ export class RemoteIngressEdge extends EventEmitter {
    });

    this.started = true;
+
+    // Start periodic status logging
+    this.statusInterval = setInterval(async () => {
+      try {
+        const status = await this.getStatus();
+        console.log(
+          `[RemoteIngressEdge] Status: connected=${status.connected}, ` +
+          `streams=${status.activeStreams}, ports=[${status.listenPorts.join(',')}], ` +
+          `publicIp=${status.publicIp ?? 'unknown'}`
+        );
+      } catch {
+        // Bridge may be shutting down
+      }
+    }, 60_000);
  }

  /**
   * Stop the edge and kill the Rust process.
   */
  public async stop(): Promise<void> {
+    if (this.statusInterval) {
+      clearInterval(this.statusInterval);
+      this.statusInterval = undefined;
+    }
    if (this.started) {
      try {
        await this.bridge.sendCommand('stopEdge', {} as Record<string, never>);
--- a/ts/classes.remoteingresshub.ts
+++ b/ts/classes.remoteingresshub.ts
@@ -11,6 +11,8 @@ type THubCommands = {
    params: {
      tunnelPort: number;
      targetHost?: string;
+      tlsCertPem?: string;
+      tlsKeyPem?: string;
    };
    result: { started: boolean };
  };
@@ -20,7 +22,7 @@ type THubCommands = {
  };
  updateAllowedEdges: {
    params: {
-      edges: Array<{ id: string; secret: string }>;
+      edges: Array<{ id: string; secret: string; listenPorts?: number[]; stunIntervalSecs?: number }>;
    };
    result: { updated: boolean };
  };
@@ -33,6 +35,7 @@ type THubCommands = {
        edgeId: string;
        connectedAt: number;
        activeStreams: number;
+        peerAddr: string;
      }>;
    };
  };
@@ -41,6 +44,10 @@ type THubCommands = {
 export interface IHubConfig {
  tunnelPort?: number;
  targetHost?: string;
+  tls?: {
+    certPem?: string;
+    keyPem?: string;
+  };
 }

 export class RemoteIngressHub extends EventEmitter {
@@ -73,7 +80,7 @@ export class RemoteIngressHub extends EventEmitter {
    });

    // Forward events from Rust binary
-    this.bridge.on('management:edgeConnected', (data: { edgeId: string }) => {
+    this.bridge.on('management:edgeConnected', (data: { edgeId: string; peerAddr: string }) => {
      this.emit('edgeConnected', data);
    });
    this.bridge.on('management:edgeDisconnected', (data: { edgeId: string }) => {
@@ -99,6 +106,9 @@ export class RemoteIngressHub extends EventEmitter {
    await this.bridge.sendCommand('startHub', {
      tunnelPort: config.tunnelPort ?? 8443,
      targetHost: config.targetHost ?? '127.0.0.1',
+      ...(config.tls?.certPem && config.tls?.keyPem
+        ? { tlsCertPem: config.tls.certPem, tlsKeyPem: config.tls.keyPem }
+        : {}),
    });

    this.started = true;
@@ -122,7 +132,7 @@ export class RemoteIngressHub extends EventEmitter {
  /**
   * Update the list of allowed edges that can connect to this hub.
   */
-  public async updateAllowedEdges(edges: Array<{ id: string; secret: string }>): Promise<void> {
+  public async updateAllowedEdges(edges: Array<{ id: string; secret: string; listenPorts?: number[]; stunIntervalSecs?: number }>): Promise<void> {
    await this.bridge.sendCommand('updateAllowedEdges', { edges });
  }
Author	SHA1	Message	Date
Juergen Kunz	d6a07c28a0	v4.3.0	2026-02-26 23:47:16 +00:00
Juergen Kunz	56a14aa7c5	feat(hub): add optional TLS certificate/key support to hub start config and bridge	2026-02-26 23:47:16 +00:00
Juergen Kunz	417f62e646	v4.2.0	2026-02-26 23:02:23 +00:00
Juergen Kunz	bda82f32ca	feat(core): expose edge peer address in hub events and migrate writers to channel-based, non-blocking framing with stream limits and timeouts	2026-02-26 23:02:23 +00:00
Juergen Kunz	4b06cb1b24	v4.1.0	2026-02-26 17:39:40 +00:00
Juergen Kunz	1aae4b8c8e	feat(remoteingress-bin): use mimalloc as the global allocator to reduce memory overhead and improve allocation performance	2026-02-26 17:39:40 +00:00
Juergen Kunz	3474e8c310	v4.0.1	2026-02-26 12:37:40 +00:00
Juergen Kunz	3df20df2a1	fix(hub): cancel per-stream tokens on stream close and avoid duplicate StreamClosed events; bump @types/node devDependency to ^25.3.0	2026-02-26 12:37:39 +00:00
Juergen Kunz	929eec9825	v4.0.0	2026-02-19 08:45:32 +00:00
Juergen Kunz	4e511b3350	BREAKING CHANGE(remoteingress-core): add cancellation tokens and cooperative shutdown; switch event channels to bounded mpsc and improve cleanup	2026-02-19 08:45:32 +00:00
Juergen Kunz	a3af2487b7	v3.3.0	2026-02-18 18:41:25 +00:00
Juergen Kunz	51de25d767	feat(readme): document dynamic port assignment and runtime port updates; clarify TLS multiplexing, frame format, and handshake sequence	2026-02-18 18:41:25 +00:00
Juergen Kunz	7b8c4e1af5	v3.2.1	2026-02-18 18:35:53 +00:00
Juergen Kunz	0459cd2af6	fix(tests): add comprehensive unit and async tests across Rust crates and TypeScript runtime	2026-02-18 18:35:53 +00:00
Juergen Kunz	6fdc9ea918	v3.2.0	2026-02-18 18:20:53 +00:00
Juergen Kunz	d869589663	feat(remoteingress (edge/hub/protocol)): add dynamic port configuration: handshake, FRAME_CONFIG frames, and hot-reloadable listeners	2026-02-18 18:20:53 +00:00
Juergen Kunz	072362a8e6	v3.1.1	2026-02-18 06:01:33 +00:00
Juergen Kunz	b628a5f964	fix(readme): update README: add issue reporting/security section, document connection tokens and token utilities, clarify architecture/API and improve examples/formatting	2026-02-18 06:01:33 +00:00