Re: IP-Address problem with cluster

Thanks for your help.

Yes we are using SNAT.

Output of : iptables-save | grep SNAT
-A POSTROUTING -o eth0 -j SNAT --to-source 'cluster-ip'

It seems that all our traffic is routet to the cluster-ip right?

What i want is, if I use tools direct from the node he should only use 
his own IP.
If the cluster gets an request on the cluster-ip he should answer with it.

Could you give me some more hints to do that.

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Auszubildender Fachinformatiker für Systemintegration
RWTH Aachen
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Am 26.06.2014 13:22, schrieb Lars Ellenberg:
> On Thu, Jun 26, 2014 at 01:13:22PM +0200, Daniel Thielking wrote:
>> Dear members!
>> I have a problem with our cluster.
>> We have two nodes each has an IP and one more IP for the cluster.
>> All our resources are on node-1 and node-2 is our slave one. But if
>> I ping from node-1 to any other machine he is using the cluster-IP
>> and not his own IP do you know how to fix that?
> typically because of source routing or SNAT.
>
> check iptables-save | grep SNAT
> and
>   ip route show
>   ip route get $dest_ip
>
> (look for "src ...")
>
> In many cases you *want* outgoing packets from the "service" IP address.
>
> You could use ip route to make them use the node address
> to contact the other nodes, but use the service address
> to contact clients.
>

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