[jboss-user] [JBoss Cache: Core Edition] - Re: IGMP and Multicast

bela@jboss.com do-not-reply at jboss.com
Tue Oct 7 12:25:30 EDT 2008


It doesn't matter which version of IGMP you use, the stack and switches should support versions 2 and 3 (and they usually do).
You probably have a different issue, e.g.:
- firewalls dropping packets
- TTL = 0
- Incorrect interfaces (bind_addr) for sending and receiving mcasts
- VLANs dropping mcasts
- Incorrect mcast addrs (224.0.0.1 - 224.0.0.255 can be dropped by the switch !)

I suggest wireshark to see whether you're getting any mcast packets flowing between the boxes

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