Sorry all... It also helps if networks enable multicast routing.
Waiting on this to be done.
Thanks for the suggestions all.
On 25 Aug 2010, at 14:56, Carl Trieloff <cctrieloff@redhat.com> wrote:
> On 08/23/2010 06:43 PM, MHT wrote:
>> So presume the tcpdump shows that the packet only gets as far as the multicast
>> address but nothing receiving? Sorry, I'm a numpty when it comes to networks.
>> Also, the Reporter column in /proc/net/igmp shows all zeros. The servers that
>> host the nodes where there's an issue are on the same vlan with no firewall
>> between them, and selinux is disabled.
>
>
> If you are running Linux, then by default in most distro's there is also a firewall
> running as a service on the box.
>
> do a 'service ipstables stop' as root on both boxes.
>
> If that resolves it, you can correct the iptables config. Form your discription my bet
> is that it is iptables.
>
> Carl.
>
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