Routers / Switches :: Can't Get Online When Bypassing Router

I'm trying to remove my router from my home network and connect my computer directly into the line coming into the house. I'm doing this to, among other things, run some tests to evaluate the impact of my router on my bandwidth.However, removing the line seems to be causing problems.Everything is fine when I'm behind the router, but once I unplug the line from the router and plug it directly into my computer, I can't connect to the internet. I get a "limited or no access" error on my Local Area Network. Once I reconnect the router, though, everything's fine.I've tried several things.I've tried turning off the Windows Firewall to no avail (I have no other firewalls on my computer).I've checked to make sure that "Obtain an IP address automatically" and "Obtain DNS server address automatically" are checked, which they are.I ran ipconfig /release and ipconfig /renew only to receive the following error:"An error occurred while renewing interface Local Area Connection : unable to contact your DHCP server. Request has timed out."I'm running Windows 7 behind a Linksys WRT54G router.My line is (I think) fiber-optic, since there's no modem anywhere in the house, just a small beige termination box.I've posted dumps of ipconfig /all with and without the router. What do I need to do to get online without the router? [code]