From 13c679e5141eb3c2dcb91850ed8e7444994aaa5d Mon Sep 17 00:00:00 2001
From: tato <zyc9012@163.com>
Date: Thu, 6 Jun 2019 09:20:17 +0800
Subject: [PATCH] Fix udp relay

---
 shadowsocks-csharp/Controller/Service/UDPRelay.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/shadowsocks-csharp/Controller/Service/UDPRelay.cs b/shadowsocks-csharp/Controller/Service/UDPRelay.cs
index 47a3c6cf..5367e29a 100644
--- a/shadowsocks-csharp/Controller/Service/UDPRelay.cs
+++ b/shadowsocks-csharp/Controller/Service/UDPRelay.cs
@@ -40,10 +40,10 @@ namespace Shadowsocks.Controller
             if (handler == null)
             {
                 handler = new UDPHandler(socket, _controller.GetAServer(IStrategyCallerType.UDP, remoteEndPoint, null/*TODO: fix this*/), remoteEndPoint);
+                handler.Receive();
                 _cache.add(remoteEndPoint, handler);
             }
             handler.Send(firstPacket, length);
-            handler.Receive();
             return true;
         }
 
@@ -74,6 +74,7 @@ namespace Shadowsocks.Controller
                 }
                 _remoteEndPoint = new IPEndPoint(ipAddress, server.server_port);
                 _remote = new Socket(_remoteEndPoint.AddressFamily, SocketType.Dgram, ProtocolType.Udp);
+                _remote.Bind(new IPEndPoint(IPAddress.Any, 0));
             }
 
             public void Send(byte[] data, int length)