Problem: Routing multicast

[Nazeem نجم لدين]

hi,

Consider 3 pc's,

pc1: Has two 2 NIC's , eth0 (10.100.0.1/16) and eth1 (10.200.0.1/16).
pc2: eth0 (10.100.0.2), connected to eth0 of pc1 and has default gateway
10.100.0.1
pc3: eth0 (10.200.0.2), connected to eth1 of pc1 and has default gateway
10.200.0.1

ie,
 we have two subnets.

10.100.0.2 [eth0] ---------- [eth0] 10.100.0.1 | 10.200.0.1
[eth1]------------ [eth0]10.200.0.2
       pc2                                               pc1
                              pc3

Now how do I route multicast packets, so that I can ip-multicast from pc2 to
pc3 or vice-versa?
The problem is that if trying to add route on pc 1, 224/4 has to be routed
to both eth0 and eth1 depending upon from whether they come from pc2 or pc3.

-Nazeem
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