server with 2 LAN cards , and default gateway ?

No you should not use more than one gateway.

If you want to direct traffic for a certain network down a specific card then you would use the route add command.

see this article about multiple gateways:http://support.microsoft.com/kb/159168

What are you trying to accomplish, teaming the cards, resilience, or are you wanting the server to be connected to different LANS at the same time. The advise depends on the situation you are in.

if both cards connect to the same network you MUST only have one with a gateway address.

If they are on different networks you can implement gateways on each network but this will confuse the server and would only work if you set up RRAS on the server to let you specify which traffic should go to each card.

Thanks All

I Have cisco Router with two interfaces ( Fast Ethernet 0/0  and fast Ethernet 0/1 )
Two interface ( 192.168.0.254 ) and ( 172.113.0.254 )

and i Have Server with two ( Lan Cards ) every LAN Have IPs as follow
LAN 1 ( 192.168.0.1 ) Default gateway ( 192.168.0.254)
LAN 2 ( 172.113.0.1 ) default Gateway ( 172.113.0.254 )

And i need this Server to serve these two network

Thanks

To server those two networks you don't need a default gateway in both networks.The default gateway is only used if no known local subnet is addressed e.g. the internet or any other remotenetwork that is routed through on of you cisco routers.

Did our posts help you any ? glad to help if you need further advise, any update ?

Thanks All

Great Response
Thanks Experts