Mike

My first reaction was "yes" but then, looking at your example, I didn't 
understand what you were trying to do since the addresses do not lie in the 
same range as defined by the subnet mask.

It's a "trick" you can play with OSAs that you can define a VIPA to lie in the 
same address range as defined for the LAN to which the OSA feature is 
attached. In effect, the VIPA is treated in the same way as the IP address 
defined for the OSA DEVICE/LINK with respect to ARP. This is of most benefit 
for dynamic VIPAs of course.

This feature of OSAs is described in a coffee-table manner in "Hot Topics", 
February 2006 - Issue 14, under "No dynamic routing protocol? No problem!".

It occurs to me that the reason I don't understand what you are trying to do 
is that I am oriented to the sort of functions relevant to a node supporting 
the IP applications rather than a node in the network performing routing - as 
are OSA features.

Chris Mason

On Mon, 23 Feb 2009 10:25:36 -0600, Ward, Mike S <[email protected]> 
wrote:

>Hello all, in a CISCO router the interfaces can have multiple IP
addresses by telling the IOS that it is a secondary. I.E.

 

IP 172.20.198.1 255.255.255.0

IP 172.21.1.1 255.255.255.0 secondary

 

The router will communicate on either of those networks. Is there
anything in z/OS that allows that type of configuration for the OSA's?

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