I have a 2800 series router and I need to know how to access the configuration via telnet/console port. I was just informed I have access to the router, before it was leased and managed by Verizon.
Any suggestions are appreciated.
I don't think that Breaking the password is a nice thing, i think that you need to negotiate with them to give you the password, and you should agree on the editing/managing terms and rules.
Who is supposed to manage the router ? If they are, leave it alone. If you are, you can perform a password recovery.
In brief, to access the router via console, connect the console cable to your PC and configure the terminal as follows:
8 data bits
1 stop bits
As for the telnet access you need to know a reachable ip address from the router (an IP that you can ping from your PC) and issue telnet to that ip from your PC.