Anonymous February 10, 2012 at 11:54 am

If the router is set for DHCP, then 2 things can happen:

-it received an ip address from an upstream router, in that case you can check the DHCP leases on the upstream router to find its ip address.

-it was not connected to an upstream router, or did not receive an ip address, and the router used its fall back DHCP address. By default this is 192.168.1.20, but you can try 192.168.10.1, or the ip address that was configured for the fallback address.