From 47c621e1f73046768cec2d32004b7007e040deda Mon Sep 17 00:00:00 2001
From: Ing-Dom <dom@ing-dom.de>
Date: Thu, 13 Feb 2025 19:02:04 +0100
Subject: [PATCH] fix data port selection for IP tunneling

---
 src/knx/ip_data_link_layer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/knx/ip_data_link_layer.cpp b/src/knx/ip_data_link_layer.cpp
index d48ed72..a9dfa03 100644
--- a/src/knx/ip_data_link_layer.cpp
+++ b/src/knx/ip_data_link_layer.cpp
@@ -799,7 +799,7 @@ void IpDataLinkLayer::loopHandleConnectRequest(uint8_t* buffer, uint16_t length,
         _lastChannelId = 0;
 
     tun->IpAddress = srcIP;
-    tun->PortData = srcPort;
+    tun->PortData = connRequest.hpaiData().ipPortNumber()?connRequest.hpaiData().ipPortNumber():srcPort;
     tun->PortCtrl = connRequest.hpaiCtrl().ipPortNumber()?connRequest.hpaiCtrl().ipPortNumber():srcPort;
 
     print("New Tunnel-Connection[");