No Multicast (IGMP Reports) On VPN Connection
Jan 2, 2010
Got an application that listens to (a number of) UDP multicast data streams.
Application works correct on XP and Vista.
On Windows 7 the application also works correct if the PC is directly connected to our (private multicast) network, only not if a VPN connection is used to the network. Th VPN connection itself works fine (i can ping the host machine) but no multicast is received.
Used Microsoft Network Monitor to trace the mulicast messages. If the PC is connected directly to the network, IGMP Report messages are send if the appliaction is started.
If the VPN connection is used, no IGMP Reports are send. IGMP queries are received from the router but the PC doesn't response with IGMP reports. Disabled the firewall but this didn't solve the problem. Any suggestions?
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Microsoft Windows 7 Ultimate 6.1.7601.1.1250.48.1045.18.4044.2707 [GMT 2:00]
[Code]......
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