I have a branch office that I am looking into replacing with Cisco equipment. Currently it is set up using Nortel ARN's as well as a direct T1 connection to our 7204 border router. The ARN's connect to each other and our border router connects (via the direct T1) to a Nortel AN router. I am looking into possible scenarios of replacing the Nortel ARNs and the AN with Cisco equipment. The only real requirment for the site is that the router needs to use an external CSU/DSU as we have to separate voice and data traffic. The site also needs to have two Fast Ethernet connections; one for the local LAN and the other for their public lab network that has a small PIX FW on it. Not sure which model PIX, but it is one of the smaller ones. I was looking at either the 2801 or 2811 routers. Does this make sense?