[jboss-user] [Clustering/JBoss] - Re: Nodes not join Cluster - UDP discarded Message

[bela@jboss.com]

- Are the 3 additional boxes in the same subnet as the others ?
- Do they bind to correct addresses ? 127.0.0.1 is *not* one !
- Any firewalls on ? If so, turn off to see whether the JOIN is successful
- Do you use VLANs ? If so, the 3 additional boxes need to be in the same VLAN as the others. Make sure VLANs dont drop IP multicast packets
- If nothing else works, you can always fallback to TCP:TCPPING and
- list your 6 nodes in TCPPING explicitly

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