Creating a VT interface

After an L2TP session is established, a virtual access (VA) interface is needed for data exchange with the peer. The system will dynamically create VA interfaces based on the parameters of the virtual template (VT) interface. To configure an LNS, first create a VT interface and configure the following parameters for it:

• Interface IP address.

• Authentication mode for PPP users.

• IP addresses allocated by the LNS to PPP users.

For information about configuring VT interfaces, see "Configuring PPP and MP" and Layer 3—IP Services Configuration Guide.