having a bit of trouble getting my eth0 to connect outside of my Debian box. I have the modules installed, and I did a modprobe eth0. I have my /etc/network/interfaces set as:

auto lo
iface lo inet loopback
auto eth0
iface lo eth0 dhcp

I can't even ping my router. Also, where do I set my gateway? Anyone know of a way to easily set this up?