Setting the Tunnel Name Format

MX960, MX480, and MX240 routers with MPCs now support the configuration of the format for L2TP tunnel names. By default, the name of a tunnel corresponds to the Tunnel-Assignment-Id [82] returned by the AAA server. You can optionally configure the LAC to use more elements in the construction of a tunnel name by including the assignment-id-format client-server-id statement at the [edit services l2tp tunnel] hierarchy level. This format uses three attributes: Tunnel-Client-Auth-Id [90], Tunnel-Server-Endpoint [67], and Tunnel-Assignment-Id [82]. These attributes correspond, respectively, to the values configured in the tunnel profile for the LAC (source gateway) name, the tunnel endpoint (remote gateway) address on the LNS, and the tunnel ID. A consequence of the client-server-id format is that the LAC automatically creates a new tunnel when the AAA server returns a different Tunnel-Client-Auth-Id than previously returned. Before you downgrade to a Junos OS Release that does not support this statement, we recommend that you explicitly unconfigure the feature by including the no assignment-id-format assignment-id statement at the [edit services l2tp tunnel] hierarchy level.