Configure Layer 2 Tunneling Protocol Services

The Layer 2 Tunneling Protocol (L2TP) enables you to set up client services for establishing Point-to-Point Protocol (PPP) tunnels across a network. To configure L2TP services, you include statements at the [edit services l2tp] hierarchy level of the configuration:

[edit services]

l2tp {

    tunnel-group name {

        hello-interval seconds;

        hide-avps;

        l2tp-access-profile profile-name;

        local-gateway address address;

        maximum-send-window packets;

        ppp-access-profile profile-name;

        receive-window packets;

        retransmit-interval seconds;

        service-interface interface-name; 

        syslog {

            host hostname {

                services priority-level;

                facility-override facility-name;

                log-prefix prefix-number;

            }

        }

        tunnel-timeout seconds;

    }

    traceoptions {

        debug-level level;

        filter {

            protocol name;

        }

        flag flag;

    }

}

You configure other components of this feature at the [edit access] and [edit interfaces] hierarchy levels. Those configurations are summarized in this chapter; for more information, see the JUNOS Internet Software System Basics Configuration Guide or the JUNOS Internet Software Network Interfaces and Class of Service Configuration Guide.

This chapter contains the following sections:

• L2TP Services Components
• L2TP Minimum Configuration
• Configure L2TP Group Properties
• Configure the Logical Interface Identifier
• Trace Layer 2 Tunneling Protocol Operations
• Example: Configure L2TP Services