WebSphere & a 2nd TCP/IP Address

For our upcoming Disaster Recovery test we want to activate WebSphere (& other Webbish things) on a DR machine.

In order to simplify the loading of the DR machine, and subsequent testing, we want to modify the configuration on our live machine as follows:

- Add the IP address that will be used during the test to the live machine configuration. AFAIK, this should be as simple as adding another interface to an existing TCP/IP comm line.

- Patch any 'Webbish' applications to allow access via the 'normal' and 'alternate' IP addresses

== HTTP servers
== WebSphere (v6) applications
==== I found reference to running a WebSphere address change utility if we want to change the IP address it responds to, but no mention of how to -add- a 2nd address
== Client Access &c
== ?? any other things.

By adding the alternate address to our live system we should be able to connect a test configuration locally and try things out before The Big Day. The test should then be a 'simple' matter of duplicating our work at the disaster recovery site.

I've poked at The Internet under several different searches to try and find out what needs to be done, but nothing seems to be related to what we're after. Can anyone point me in the right direction?

Thanks!

--Paul E Musselman
PaulMmn@xxxxxxxxxxxxxxxxxxxx