HP VPN Firewall Appliances VPN Configuration Guide

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• The system automatically creates a virtual template (VT) interface with the number L2TP group ID
minus 1. After an L2TP session is established, the LNS creates a virtual access (VA) interface based
on the configuration parameters of the VT interface for data exchange with the peer. An LNS can
use different VA interfaces to exchange data with different LACs.
NOTE:
You cannot add an L2TP whose VT interface already exists. To add it, first delete the corresponding VT
interface from Device Management > Interface Management.
To add an L2TP group:
1. Select VPN > L2TP > L2TP Config from the navigation tree to enter the L2TP configuration page, as
shown in Figure 157.
2. Click Add on the L2TP co
nfiguration page to add an L2TP group.
Figure 158 Adding an L2TP group
When you select the Advanced Configuration box in Figure 158, the following page appears, as
shown in Figure 159.