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Multicast Troubles

I am having problems configuring multicast support on my PIX 515 (6.3(2)).

I am trying support a Symantec Ghost Console on my Inside network, communicating with Ghost Clients on my DMZ network.

Server:

System = Windows 2000 Server, Domain member

IP = 192.168.0.18

Default Gateway = 192.168.0.75 (PIX Inside interface)

Multicast Client:

System = Windows XP Professional, Workgroup member

IP = 192.168.2.31

Default Gateway = 192.168.2.1 (PIX DMZ interface)

The following article describes the multicast infrastrcuture required for this system to work:

http://service1.symantec.com/SUPPORT/ghost.nsf/ppfdocs/2002101612025325?Open&dtype=corp

I have tried a number of multicast configurations, with no success.

My questions are these:

Does the PIX support the multicast communications that I need -- or do I have to wait for 7.0?

If it does, what configuration do I require (in terms of multicast, nat and access-list settings) -- given that my Server and Workstations are on different subnets/interfaces?

When I ran Microsoft's "mcast.exe" (multicast troubleshooting utility), none of the multicast traffic got through. When I moved the Client to the same subnet/interface as the Server, the multicast traffic was fine.

Thanks to all for your input,

Alan

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Contributor

Re: Multicast Troubles

In Software versions 6.2 and higher the PIX firewall supports Stub Multicast routing (SMR), which enables it to pass multicast traffic. With SMR the PIX acts as an IGMP proxy agent.