routeur cisco 1841 and cisco SA540

[Profix_tunisie]

I already have 1841 router and I am trying to install SA540 as firewall. Can someone help me how to configure these

two?  I tried once but failed. I can connect Internet from firewall but I can  not connect Internet from PC which connected to router.

If I have to tell you more information, please let me know.

Thank you.

[Maykol Rojas]

Tahar,

How far you can get? Do you have connectivty between the SA and the 1841 Router? Is the Router able to go out to the internet? In your computer, can you see an ARP being build for the IP address of the router?

Mike