I have a CISCO router and a Cable TV Box at HOME where they both has telnet enabled. Now I have enabled telnet with vty password into both devices. From my HOME network I can telnet into both devices and connect fine. But when I try to telnet to the devices from my WORK or outside of my HOME I can only connect to the Cable TV Box via telnet but cannot connect to the Cisco Router. Note I am using port forwarding in my ADSL router and only one device I can forward port 23 at a time. I have private static IPs for both Devices. When I forward to Cable TV Box I can connect but when I forward to the CISCO Router I can't connect.
I get this error: Could not open connection to the host, on port 23: Connect failed
Any suggestion? Please help.