sometimes people need to configure their router, and they don't have the cd that came with the router (or the cd doesn't work which is usually the case), and sometimes people just want to totally ignore the cd and go straight for the router's built-in web server configuration page. my list doesn't even compare to this list I found.
http://192.168.1.1 user id: password:admin
other devices from linksys such as the WET610N will have a different address.
http://192.168.0.1 user id:admin password:password
http://192.168.10.1 user id:admin password:admin
http://192.168.2.1 user id: password:smcadmin
http://192.168.123.254 or http://192.168.2.1 (see manual) user id: password:admin you set the user id and password on first startup or reset.
set up your pc for a fixed IP 192.168.0.xxx (2..254) and: http://192.168.0.1 user id:Admin password: (looks odd, doesn't it?)
http://192.168.0.1 user id:admin password:admin
http://192.168.1.1 user id:admin password:admin
http://10.0.1.1 user id: password:admin
http:// some of the routers use dd-wrt for firmware. so it asks you on startup what uid and password to use.
http:// (router dependent)
on 30/30/30 or other reset (see the router-specific page wiki on dd-wrt.com before starting!!!), asks you for new user id and password
http://192.168.2.1 or http://router user id: password: apparently nothing else is needed other than the address. this is from the N750DB manual.