D-Link DSR-Series User Manual 124
Section 7 - VPN
L2TP VPN
L2TP Server
Path: VPN > L2TP VPN > L2TP Server
A L2TP VPN can be established through this router. Once enabled a L2TP server is available on the router for LAN
and WAN L2TP client users to access. Once the L2TP server is enabled, PPTP clients that are within the range of
conīgured IP addresses of allowed clients can reach the routerās L2TP server. Once authenticated by the L2TP
server (the tunnel endpoint), L2TP clients have access to the network managed by the router.
The range of IP addresses allocated to L2TP clients can coincide with the LAN subnet. As well the L2TP server
will default to local L2TP user authentication, but can be conīgured to employ an external authentication server
should one be conīgured.
Field Description
Enable L2TP Server Select either IPv4 or IPv6.
L2TP Routing Mode Select either NAT or Classical.
Starting/Ending IP Address Enter the IP address range to assign your L2TP clients.
IPv6 Preīx If you selected IPv6, enter the IPv6 preīx.
IPv6 Preīx Length If you selected IPv6, enter the IPv6 preīx length.
Authentication Select the authentication type from the drop-down menu.
Authentication Supported Toggle which type of authentication you want to enable to ON.
Secret Key Enables/Disable support for Secret Key and enter Secret Key if support is enabled.
Idle TimeOut Enter the amount of time in seconds that the connection will disconnect when idle.
Save Click to save your settings.
To create a L2TP VPN server:
1. Click VPN >L2TP VPN > L2TP Server.
2. Complete the īelds in the table below and click Save.