I am setting up a 1841 router that the client already has with a low cost roadrunner cable connection. the 1841 he has was from a previous vendor with a T1. The 1841 does not have the cable modem card in it. I have tried quite a few things and I will attempt to list them. Firstly, I ensured the cable modem doesn't hold MAC addresses - I have connected my laptop to it and a Linksys router, and both times I recieve a WAN IP and can browse the intarweb.
I connected the modem to FE0/1 of the 1841 router, ensured it's admin up (pretty lights), set it to DHCP, but when I issue the "show ip interface brief" FE0/0 has my internal IP address, but FE0/1 isn't getting an IP. I thought that would be the simple part. before I did any of this, I formated flash, and loaded a new IOS onto the 1841 (c1841-adventerprisek9-mz.124-13a.bin). What am I missing?