Please, anybody help on resolving the following problem?
I have 2 netwotks ( 10.0.0.0 and 10.0.11.0 ) on 2 different areas
I need both networks to telnet the corresponding ethernet card.

This is a prblem because AIX is configured with a default gateway.

Please advice how to assign 2 different gateways on the machine.

Each network card will have its own gateway and as such this should take care of the correct routing.

Network "10.0.0.0" is - if nothing else is stated, a class A network, ranging from 10.0.0.1 to 10.255.255.254, 10.0.0.0 being the broadcast address and 10.255.255.255 being the multicast address.

Of course you can subnet network 10 down to a 8-bit Host mask/24-bit network mask (this is usually regarded as "Class C"), but in this case you would lose network 10.0.0 as well as the network 10.255.255. The reason is, that neither the host address nor the net address may consist of only 1s or 0s.

For this reason your addresses "10.0.0.x" and "10.0.11.x" are either on the same network or 10.0.0.x is illegal.

I'd suggest you get a TCP/IP networking primer and start over your network layout again.

bakunin