2 Nics / 2 Networks / Multicast traffic
Posted on 2009-04-30
ATCA Chassis with a Radisys ATCA 4300 Processor Board running RHEL 5.3
There are 4 NICS on the backplane of the ATCA4300 which are visible to the host.
eth2 + eth3 are slaves to bond0.100 which tags vlan 100 (also subnetted to be on the 10.0.0.0/14 network)
eth4 + eth5 are slaves to bond1.200 which tags to vlan 200 (subnetted to be on the 10.4.0.0/14 network)
I have a requirement for the host to use both subnets, where it will join multicast groups on each.
The problem is that I need to add a route to the host routing table for the 188.8.131.52 (IGMP V3 Join Message), (or i can add a default route) but I can only add it to one Interface. Technically, I can route it to both interfaces, but it will always pick the first match on the routing table.
Is there a work around for this? How do I get the IGMP Join messages to the correct subnet?