Enable Multicast Traffic Through OEL Firewall
734084Feb 4 2011 — edited Feb 16 2011Hello~
On a clustered install of Oracle Service Bus, I'm seeing an exception where Coherence crashes due to network issues related to multicast messaging.
Following the steps outlined here:
http://download.oracle.com/docs/cd/E14526_01/coh.350/e14509/multigramtest.htm#BHAICAGE
and by enabling/disabling the local iptables firewall, I've been able to confirm that multicast traffic is being blocked by iptables.
I don't have a lot of experience with hand-writing firewall rules and haven't had much luck finding the right google query to get me to an applicable solution...
So, could someone please help? - let's say we want to enable multicast traffic to/from two different machines, 10.0.0.1 and 10.0.0.2. What would an iptables rule look like that allows that traffic?
Thanks in advance,
- Nathan
P.S. This is on Oracle Enterprise Linux 5.5 x64.