i got a second hand Cisco 1720 router, but it was set up the login and configuration already. and i don't know the login password/username. I want to reset to factory mode or sth original mode that i can start from the beginning. how?
also want to configure it to connect with my home ADSL modem for setting up a LAN lab, i want to setup it up similar to as a company that has a modem, router, then switch?
also, my current home internet is with a ISP that only gave me a username and password. not sure i got a static IP address or not, if so , am I still able to do what I want stated above?