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From Ehcuk <eh...@yahoo.co.uk>
Subject Re: Clustering not working
Date Thu, 26 Aug 2010 07:43:33 GMT
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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