Hi guys, thanks for viewing I guess.

Well, basically I have a redhat 7.1 loaded with 4 nics. I'm wondering whether can anyone help with the setup. I want to setup 2 wan ( Wan.1, Wan.2 ) and 2 lan ( Lan.1, Lan.2 ).

The problem is I need to setup up Lan.1 only using Wan.1 for internet connection, and Lan.2 using Wan.2 internet connection.
All these Wans and Lans have different set of ips. After setting up the ip routing, I only manage to get one of the above Lan/Wan working but not both.

Is there any possibilities to configure for both connection ?

You can use iptables to regulate connectivity.

AFAIK, I am not sure about the managing part - ability to manage just one set of internal and external cards... interesting problem though.