NETGEAR UTM5EW-100NAS manual Configure the L2TP Server, Pptp Active Users screen information, 334

ProSecure Unified Threat Management (UTM) Appliance

The List of PPTP Active Users table lists each active connection with the information that is described in the following table.

Table 85. PPTP Active Users screen information

Item	Description
Username	The name of the PPTP user that you have defined (see Configure User Accounts on
	page 401).
Remote IP	The remote client’s IP address.
PPTP IP	The IP address that is assigned by the PPTP server on the UTM.
Action	Click the Disconnect table button to terminate the connection. (This button is displayed
	only when there an active connection.)

The default poll interval is 5 seconds. To change the poll interval period, enter a new value in the Poll Interval field, and then click the Set Interval button. To stop polling, click the Stop button.

Configure the L2TP Server

As an alternate solution to IPSec VPN and PPTP tunnels, you can configure a Layer 2 Tunneling Protocol (L2TP) server on the UTM to allow users to access L2TP clients over L2TP tunnels. A maximum of five simultaneous L2TP user sessions are supported. (The very first IP address of the L2TP address pool is used for distribution to the UTM.)

An L2TP Access Concentrator (LAC) typically initiates a tunnel to fulfil a connection request from an L2TP user; the L2TP server accommodates the tunnel request and assigns an IP address to the user. After an L2TP tunnel is established, the user can connect to an L2TP client that is located behind the UTM.

Note: IPSec VPN and PPTP provide stronger authentication and encryption than L2TP. (Packets that traverse the L2TP tunnel are not encapsulated by IPSec or MPPE.)

You need to enable the L2TP server on the UTM, specify an L2TP server address pool, and create L2TP user accounts. For information about how to create L2TP user accounts, see Configure User Accounts on page 401.

To enable the L2TP server and configure the L2TP server pool and authentication:

1. Select VPN > L2TP Server. The L2TP Server screen displays:

Virtual Private Networking Using IPSec, PPTP, or L2TP Connections

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