From 675dc5b693495cb50c3004499a1d1f137722b988 Mon Sep 17 00:00:00 2001
From: Atsushi Eno <atsushi@ximian.com>
Date: Tue, 15 Feb 2011 01:54:13 +0900
Subject: support UdpTranspoerSettings.MulticastInterfaceId. This should fix
 bug #669328.

---
 .../System.ServiceModel.Discovery.Udp/UdpDuplexChannel.cs              | 3 +++
 .../System.ServiceModel.Discovery/UdpTransportSettings.cs              | 1 +
 2 files changed, 4 insertions(+)

diff --git a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery.Udp/UdpDuplexChannel.cs b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery.Udp/UdpDuplexChannel.cs
index d87addf015c..754cf515f7b 100644
--- a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery.Udp/UdpDuplexChannel.cs
+++ b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery.Udp/UdpDuplexChannel.cs
@@ -265,6 +265,9 @@ namespace System.ServiceModel.Discovery.Udp
 			client.EnableBroadcast = true;
 
 			// FIXME: apply UdpTransportSetting here.
+			var settings = binding_element.TransportSettings;
+			if (settings.MulticastInterfaceId != null)
+				client.Client.SetSocketOption (SocketOptionLevel.Udp, SocketOptionName.MulticastInterface, settings.MulticastInterfaceId);
 		}
 		
 		Func<TimeSpan,Message> receive_delegate;
diff --git a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/UdpTransportSettings.cs b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/UdpTransportSettings.cs
index d6032b1f2fb..78e0e42c9ea 100755
--- a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/UdpTransportSettings.cs
+++ b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/UdpTransportSettings.cs
@@ -54,6 +54,7 @@ namespace System.ServiceModel.Discovery
 			MaxPendingMessageCount = source.MaxPendingMessageCount;
 			MaxReceivedMessageSize = source.MaxReceivedMessageSize;
 			MaxUnicastRetransmitCount = source.MaxUnicastRetransmitCount;
+			MulticastInterfaceId = source.MulticastInterfaceId;
 			SocketReceiveBufferSize = source.SocketReceiveBufferSize;
 			TimeToLive = source.TimeToLive;
 		}
-- 
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