How to config double network card
 

Hi:
I have a red hat linux server which have two network cards. I want to use the server to serve as an FTP server.
Since I have enough broadband, thus I want to use both the newwork cards.

I configured the two network cards using different IPs seperatly (The two IPs have one gateway). But I found the outward volume is only go through one card. It means the eth0 has otward packages, but eth1 does not.

What can I do?

Thanks for help

anyone knows?
Please help