diff --git a/changelog.md b/changelog.md
index e3a619e..beec6c4 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 2025-03-01 - 3.20.1 - fix(PortProxy)
+Improve IP allowance check for forced domains
+
+- Enhanced IP allowance check logic by incorporating blocked IPs and default allowed IPs for forced domains within port proxy configurations.
+
 ## 2025-03-01 - 3.20.0 - feat(PortProxy)
 Enhance PortProxy with advanced connection cleanup and logging
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 431ee16..7387680 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '3.20.0',
+  version: '3.20.1',
   description: 'A powerful proxy package that effectively handles high traffic, with features such as SSL/TLS support, port proxying, WebSocket handling, and dynamic routing with authentication options.'
 }
diff --git a/ts/classes.portproxy.ts b/ts/classes.portproxy.ts
index 7782050..a25714b 100644
--- a/ts/classes.portproxy.ts
+++ b/ts/classes.portproxy.ts
@@ -413,7 +413,15 @@ export class PortProxy {
             domain => domain.portRanges && domain.portRanges.length > 0 && isPortInRanges(localPort, domain.portRanges)
           );
           if (forcedDomain) {
-            if (!isAllowed(remoteIP, forcedDomain.allowedIPs)) {
+            const effectiveAllowedIPs: string[] = [
+              ...forcedDomain.allowedIPs,
+              ...(this.settings.defaultAllowedIPs || [])
+            ];
+            const effectiveBlockedIPs: string[] = [
+              ...(forcedDomain.blockedIPs || []),
+              ...(this.settings.defaultBlockedIPs || [])
+            ];
+            if (!isGlobIPAllowed(remoteIP, effectiveAllowedIPs, effectiveBlockedIPs)) {
               console.log(`Connection from ${remoteIP} rejected: IP not allowed for domain ${forcedDomain.domains.join(', ')} on port ${localPort}.`);
               socket.end();
               return;