Shutting Down Destinations, Tunnels, and Sessions

You can configure how the router shuts down L2TP destinations, tunnels, and sessions. You can specify the following shut down methods, which also prevent the creation of new tunnels:

1. Closing Existing and Preventing New Destinations, Tunnels, and Sessions on the Router
2. Closing Existing and Preventing New Tunnels and Sessions for a Destination
3. Closing Existing and Preventing New Sessions in a Specific Tunnel
4. Closing a Specific Session

Closing Existing and Preventing New Destinations, Tunnels, and Sessions on the Router

You use the l2tp shutdown command to close all existing destinations, tunnels, and sessions, and to prevent the creation of new destinations, tunnels, and sessions on the router.

The l2tp shutdown command and the l2tp drain command both affect the administrative state of L2TP on the router. Although each command has a different effect, the no version of each command is equivalent. Each command’s no version leaves L2TP in the enabled state.

• To close all destinations, tunnels, and sessions on the router:
  host1(config)#l2tp shutdown

Closing Existing and Preventing New Tunnels and Sessions for a Destination

You use the l2tp shutdown destination command to close all existing tunnels and sessions for a destination and to prevent the creation of tunnels and sessions for that destination.

The l2tp shutdown destination command and the l2tp drain destination command both affect the administrative state of L2TP for the destination. Although each command has a different effect, the no version of each command is equivalent. Each command’s no version leaves L2TP in the enabled state.

• To close tunnels and sessions, and prevent creation of new tunnels and sessions for the specified destination:
  host1(config)#l2tp shutdown destination 1

Closing Existing and Preventing New Sessions in a Specific Tunnel

You use the l2tp shutdown tunnel command to close all sessions in a tunnel and to prevent the creation of sessions in a tunnel.

The l2tp shutdown tunnel command and the l2tp drain tunnel command both affect the administrative state of L2TP for the tunnel. Although each command has a different effect, the no version of each command is equivalent. Each command’s no version leaves L2TP in the enabled state.

• To close all existing sessions in a specific tunnel and prevent creation of new sessions:
  host1(config)#l2tp shutdown tunnel 1/isp.com

Closing a Specific Session

You use the l2tp shutdown session command to close the specified session.

• To close a specific session:
  host1(config)#l2tp shutdown session 1/1/1