exec-timeout command

By default, an IOS device will disconnect a console or VTY user after 10 minutes of inactivity. You can specify a different inactivity timer using the exec-timeout MINUTES SECONDS line mode command.

For example, to disconnect a console user after 90 seconds of inactivity, we can use the following command:

R1(config)#line con 0
R1(config-line)#exec-timeout 1 30

After 90 seconds of inactivity, the session will be disconnected and the user will need to supply the console password to log back in:

R1(config-line)#

R1 con0 is now available

Press RETURN to get started.

User Access Verification

Password:
NOTE
To disable the timeout, use the value of 0 (not recommended in production environments!)
upravnik