[Linux-HA] Cloning heartbeat::ocf:IPaddr with different IPs

[Christian Rishøj]

On 6/17/07, Michael Schwartzkopff <misch at multinet.de> wrote:

> > And a more general clustering question: It is stated somewhere in the
> > documentation that clones were made for the purpose of IP adresses.
> > Now, wouldn't most routers prohibit usage of the same IP address on
> > several nodes? What is the common idiom in this case?
>
>
> Use multicast MAC Adresses. And yes, some routers do not learn multicast
> MAC addresses. You would have to configure these addresses statically. I
> wrote an  article about that (CLUSTERIP target of iptables) in the
> German "Linux Magazin". It will be published in the English version
> soon. For the use of CLUSTERIP in a Linux-HA RA see:
> http://www.linux-ha.org/ClusterIP

CLUSTERIP is definitely seems to be the way to go. Thank you for the
valuable information.

Looks like the iptables package distributed with Ubuntu is lacking
support for the CLUSTERIP target (according to
https://bugs.launchpad.net/ubuntu/+source/iptables/+bug/113863), so I
will have to roll out my own.

Best,
Christian