Right now my network has a T1 coming into my 1841. We then have the 1841 connected to a PIX 501 which handles our routing (very basic).
We want to get rid of the PIX and have the 1841 handle the routing, VPN, and firewall functions that the PIX is currently doing.
My problem is is that the ethernet interface on the 1841 has a public IP going into the PIX and once I take the PIX out of the picture, I am not sure how to configure the 1841.
Attached is a diagram of the relevant network portion.
Currently we have the PIX setup with NAT so that everything leaving the PIX goes out as 208.x.x.101. So when the PIX leaves, NAT has to be setup on 1841.
Basically, I am confused on how to setup the IP's when the PIX is out of the picture. I am assuming I keep the serial interface of the 1841 as 69.x.x.x but what would I setup the e0/0 interface to be that will now be directly connected to our switch (192.168.1.5)