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Created attachment 484333 [details] Patch to remove the ttl option from udpu and rely on the kernel ttl setting.
works as expected: Default mcast TTL=1 (OK): 05:22:13.206428 IP (tos 0x0, ttl 1, id 0, offset 0, flags [DF], proto UDP (17), length 147) 10.15.89.15.5404 > 239.192.181.140.5405: UDP, length 119 Default override TTL=44 (OK): 05:38:12.450338 IP (tos 0x0, ttl 44, id 0, offset 0, flags [DF], proto UDP (17), length 147) 10.15.89.15.5404 > 239.192.181.140.5405: UDP, length 119 Failure when TTL set to udpu (OK): Apr 18 05:42:04 z4 corosync[29781]: [MAIN ] parse error in config: Can only set ttl on multicast transport types udpu TTL=64 (default) (OK): 05:43:33.090016 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 147) 10.15.89.15.37226 > 10.15.89.17.5405: UDP, length 119 udpu IPv6 default TTL (OK): 09:02:40.795006 IP6 (hlim 64, next-header UDP (17) payload length: 127) fec0:0:a0e:5900:221:5eff:fe6f:6cc7.38318 > fec0:0:a0e:5900:222:19ff:fe02:ada8.5405: [udp sum ok] UDP, length 119 09:02:40.795024 IP6 (hlim 64, next-header UDP (17) payload length: 127) fec0:0:a0e:5900:221:5eff:fe6f:6cc7.46353 > fec0:0:a0e:5900:221:5eff:fe6f:6cc7.5405: [udp sum ok] UDP, length 119 IPv6 override TTL=44 (OK): 09:04:13.418369 IP6 (hlim 44, next-header UDP (17) payload length: 127) fec0:0:a0e:5900:221:5eff:fe6f:6cc7.5404 > ff15::b5d6.5405: [udp sum ok] UDP, length 119 IPv6 default TTL (OK): 09:05:27.510154 IP6 (hlim 1, next-header UDP (17) payload length: 127) fec0:0:a0e:5900:221:5eff:fe6f:6cc7.5404 > ff15::b5d6.5405: [udp sum ok] UDP, length 119
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2011-0764.html