make portforwarding more stable Found while testing portforwarding with http and some real quick reloads. Port-Forwardings crashes when unable to ship data. https://sshnet.codeplex.com/discussions/446914

gistfile1.diff

diff --git a/Renci.SshNet/Channels/ChannelDirectTcpip.NET40.cs b/Renci.SshNet/Channels/ChannelDirectTcpip.NET40.cs
index c0518ce..dccca76 100644
--- a/Renci.SshNet/Channels/ChannelDirectTcpip.NET40.cs
+++ b/Renci.SshNet/Channels/ChannelDirectTcpip.NET40.cs
@@ -21,7 +21,14 @@ namespace Renci.SshNet.Channels
 
         partial void InternalSocketSend(byte[] data)
         {
-            this._socket.Send(data, 0, data.Length, SocketFlags.None);
+            try
+            {
+                this._socket.Send(data, 0, data.Length, SocketFlags.None);
+            }
+            catch (Exception exp)
+            {
+                // XXX: ignore/log?
+            }
         }
     }
 }