Blindly assuming .1 is your router is a bad idea. I've seen cases when it all started with a single uber-host at .1 which does routing, DNS, DHCP, mail, and int

Blindly assuming .1 is your router is a bad idea. I've seen cases when it all started with a single uber-host at .1 which does routing, DNS, DHCP, mail, and internal web server; and later on the routing part was moved to a separate device with its own IP. Also, well-known IPs, and 192.168.0.1 in particular, should just be avoided. You don't want IP conflict in your network just because someone plugged in unconfigure device!