>
> hmm maybe I misunderstand here, but the we are trying to make OSPF work
> in 2.6 and the problem appears to be that our board does not pick up
> multicasts.
> Is icmp_echo_ignore_broadcasts=0 required to make OSPF work in 2.6?
>
> Jocke
>
No, it's required to make "ping" to a multicast address
work, which is what your mail said was the problem. :-) "ping"
uses ICMP, OSPF does not.
If you receive ping responses with ignore_broadcasts=0
and not in promiscuous mode, then the problem may be a smart
switch that doesn't understand IGMPv3. In that case, you
can try:
sysctl -w net.ipv4.conf.all.force_igmp_version=2
You can also, of course, check /proc/net/igmp and
/proc/net/dev_mcast to make sure you've joined the OSPF
multicast address on the interface(s) you care about.
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