Apply / Cancel; Configuration | System | Tunneling Protocols | L2Tp - Cisco VPN 3000 User Manual

Apply / Cancel

To apply your PPTP settings and to include them in the active configuration, click Apply . The Manager
returns to the Configuration | System | Tunneling Protocols screen.
Reminder: To save the active configuration and make it the boot configuration, click the Save Needed icon at the
top of the Manager window.
To discard your settings, click Cancel . The Manager returns to the Configuration | System | Tunneling
Protocols

Configuration | System | Tunneling Protocols | L2TP

This screen lets you configure system-wide L2TP (Layer 2 Tunneling Protocol) parameters.
L2TP is a client-server protocol. It combines many features from PPTP and L2F (Layer 2 Forwarding),
and is regarded as a successor to both. The L2TP protocol defines mechanisms both for establishing and
controlling the tunnel and for transferring data.
The VPN Concentrator always functions as a L2TP Network Server (LNS) and supports remote PC
clients. The L2TP tunnel extends all the way from the PC to the VPN Concentrator. When the client PC
is running Windows 2000, the L2TP tunnel is typically layered over an IPSec transport connection.
You can configure L2TP on rules in filters; see Configuration | Policy Management | Traffic Management .
Groups and users also have L2TP parameters; see Configuration | User Management .
Figure 7-3: Configuration | System | Tunneling Protocols | L2TP screen
Note:
Cisco supplies default settings for L2TP parameters that ensure optimum performance for typical VPN
use. We strongly recommend that you not change the defaults without advice from Cisco personnel.
VPN 3000 Concentrator Series User Guide
screen.
Configuration | System | Tunneling Protocols | L2TP
7-5