Some advice for network config on artica [CLOSED]

[execcr]

Hi, i have some question and i hope someone could help me.

I have installed artica on ubuntu 9.10.
No probolem here but i dont know how to configure artica for my network. I tried to explain my problem startin from my network.

I have 4 lan pc, connected to a cisco switch. to the cisco switch it's also connected a router dhcp thare share my internet connection. The connection i have its over a CAT5 cable and my isp give me a private ip number (class 10.x.x.x) and gateway number. So i configured my router with ip static address in wan settings.

Now i want to remove the router and use artica as a DCHP server - gateway.

I have installed another lan card on my server, one is connected to the switch and one is connected to my ISP cat5 cable.
Then in artica conf i set my isp ip address in one lan card, and i set dhcp server to the another.

But i have a problem: a lan pc take artica dhcp adress, but cant go on internet. The artica server has no problem (ping http://www.google.com for example works)

How i set my artica server as a "router" for share the internet connection??
best regards!

[admin]

see this page :

http://www.artica.fr/index.php/artica-a ... as-gateway