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Disconnecting and suspending Telnet sessions

Disconnecting and suspending Telnet sessions


4.2.3 This page will introduce two important features of the telnet command. These are the disconnect feature and the suspend feature.
A potential problem exists when a Telnet session is suspended and the Enter key is pressed. Cisco IOS software resumes the connection to the most recently suspended Telnet connection. The Enter key is used frequently. With a suspended Telnet session, it is possible to reconnect to another router. This is dangerous when changes are made to the configuration or EXEC commands are used. Always check which router is connected when the suspended Telnet feature is used.
The show sessions command will show which Telnet sessions are active.
The procedure that is used to disconnect a Telnet session is as follows:
  • Enter the disconnect command.
  • Follow the command with the name or IP address of the router or the session number. An example is as follows:
Denver>disconnect paris
The procedure that is used to suspend a Telnet session is as follows:
  • Press Ctrl-Shift-6, then x.
  • Enter the name of the router or IP address.
The Lab Activity will instruct students on how to suspend a Telnet session.
The next page will introduce some advanced features that can be used for multiple Telnet sessions.

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