Hello, I have four 2521 routers and three 2954 switches. I connected my ISPs modem from the ethernet port and plugged it into port 24 of one of my switches. I also configured the switch for VTY access and gave it a login password. I would like to log into the switch to configure it and telnet into all the other devices from a remote location. But I am unable to ping the public address assigned to me by my ISP. So I can't even telnet to the switch. Help
When physically access the 2521 router you below test:
1. Ping to 220.127.116.11
2. Telnet to internal pc
3. You must be configure Enable password.
Before you telnet from remote location first you check the ping test then you telnet.
I hope it could help you