On Jun 18, 1:55 pm, unixgee...@gmail.com wrote:
> Greetings all,
>
> I am looking for any documentation that will give tips on how to set
> up Cisco switches for IP aliasing on multiple subnets. I found the
> HACMP cookbook, but that isn't giving me the needed information. My
> networking group wants exact information on how they need to set up
> their switches to allow multiple subnets over single interfaces.
> They are very apprehensive in allowing this type of behaviour, and I
> want to give them some solid guidance on what is needed.
>
> Thank you in advance!
>
> Eddie


Hi Eddie,

Basically you don't really need to tell them anything. All we did was
set up a boot IP that was local to the cluster vlan and add persistent
IP addresses for the hosts themselves.

Basically, en0 on node 1 will have an ip of 172.16.0.1 (in mktcpip)
and a persistent IP (an HACMP resource) of whatever DNS resolves to
for that host itself and node 2 will have en0 be 172.16.0.2 and a
persistent IP of whatever DNS resolves to for node 2.

172.16.0.x doesn't need to be routed off of that VLAN. The boot IP
and the service IPs can reside on the same NIC as long as they're on
the same VLAN. Make sense?

Andrew