Only listen on 127.0.0.1

lib/ShortDev.Microsoft.ConnectedDevices/TestUtils.cs

@@ -0,0 +1,13 @@
+using System.Net;
+
+namespace ShortDev.Microsoft.ConnectedDevices;
+
+internal sealed class TestUtils
+{
+    public static IPAddress ListenAddress { get; private set; } = IPAddress.Any;
+
+    internal static void ListenLocalOnly()
+    {
+        ListenAddress = IPAddress.Loopback;
+    }
+}

lib/ShortDev.Microsoft.ConnectedDevices/Transports/Network/NetworkTransport.cs

@@ -24,7 +24,7 @@ public EndpointInfo GetEndpoint()
     public event DeviceConnectedEventHandler? DeviceConnected;
     public async Task Listen(CancellationToken cancellationToken)
     {
-        var listener = _listener ??= new(IPAddress.Any, TcpPort);
+        var listener = _listener ??= new(TestUtils.ListenAddress, TcpPort);
         listener.Start();
 
         try
@@ -88,7 +88,7 @@ static UdpClient CreateUdpClient(int port)
         }
 
         client.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
-        client.Client.Bind(new IPEndPoint(IPAddress.Any, port));
+        client.Client.Bind(new IPEndPoint(TestUtils.ListenAddress, port));
 
         return client;
     }

tests/ShortDev.Microsoft.ConnectedDevices.Test/E2E/End2EndTest.cs

@@ -36,6 +36,8 @@ ConnectedDevicesPlatform CreateDevice(DeviceContainer network, string name, stri
 
     static void UseTcp(ConnectedDevicesPlatform cdp, int tcpPort, int udpPort)
     {
+        TestUtils.ListenLocalOnly();
+
         NetworkHandler networkHandler = new(IPAddress.Loopback);
         NetworkTransport networkTransport = new(networkHandler, tcpPort, udpPort);
         cdp.AddTransport(networkTransport);