I have a telnet session to a remote host that is connected to my aux port being used as a serial connection. The serial host will only show it's link up if it receives an ACK from the remote host. Sometimes the link will go down and it becomes a finger pointing session. I can see the telnet session connected to the remote host and connected to the aux when I do a sh user. Heartbeats run every 60 seconds and I never see my last activity go above 60. How do I monitor the telnet session so I can see the Heartbeat/ACK/data across this telnet session?
