The network element must time out access to the console port after 10 minutes or less of inactivity.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition quickly terminating an idle session will also free up resources committed by the managed network element. Setting the timeout of the session to 10 minutes or less increases the level of protection afforded critical network components.
Configure the timeout for idle console connection to 10 minutes or less.
Review the configuration and verify that a session using the console port will time out after 10 minutes or less of inactivity as shown in the following example: line con 0 exec-timeout 10 0
Information Assurance Officer