Connection _ Keep Alive

Send keep alive messages while this session is connected
Send keep alive messages every user defined interval (seconds) to a remote computer. This is useful when a connection is unexpectedly closed while the connection is idle. In some network environments, the gateway or firewall system forces a disconnection if data transfer is not made for a defined period of time.

Send string when network is idle
Certain systems, if there is not user key input, the sessions is automatically determined to be idle and the sesion is ended. Typically, the NF value, /n, is used.

Send TCP keep alive packets when network is idle
Users cannot designate the interval or cycles in which keep alive packets are sent at the OS level.