Configuring Addressing

When you configure an L2TP group, you must also define a local address for the L2TP tunnel connections and the AS PIC that processes the requests:

• To configure the local gateway IP address, include the local-gateway statement at the [edit services l2tp tunnel-group group-name] hierarchy level:

  local-gateway address address;

• To configure the AS PIC, include the service-interface statement at the [edit services l2tp tunnel-group group-name] hierarchy level:

  service-interface sp-fpc/pic/port;

You can optionally specify the logical unit number along with the service interface. If specified, the unit is used as a logical interface representing PPP sessions negotiated using this profile.

Note: If you change the local gateway address or the service interface configuration, all L2TP sessions using those settings are terminated.

Dynamic class-of-service (CoS) functionality is supported on L2TP LNS sessions or L2TP sessions with ATM VCs, as long as the L2TP session is configured to use an IQ2 PIC on the egress interface. For more information, see the JUNOS Class of Service Configuration Guide.