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SONICWALL SONICOS ENHANCED 2.5 ADMINISTRATOR’S GUIDE
191
VPN > L2TP Server
C
HAPTER
32
Chapter 32: Configuring L2TP Server
VPN > L2TP Server
The SonicWALL security appliance can terminate L2TP-over-IPSec connections from incoming
Microsoft Windows 2000 and Windows XP clients. In situations where running the SonicWALL Global
VPN Client is not possible, you can use the SonicWALL L2TP Server to provide secure access to
resources behind the SonicWALL security appliances.
You can use Layer 2 Tunneling Protocol (L2TP) to create VPN over public networks such as the
Internet. L2TP provides interoperability between different VPN vendors that protocols such as PPTP
and L2F do not, although L2TP combines the best of both protocols and is an extension of them.
L2TP is supported on Microsoft Windows 2000 Operating System.
L2TP supports several of the authentication options supported by PPP, including Password
Authentication Protocol (PAP), Challenge Handshake Authentication Protocol (CHAP), and Microsoft
Challenge Handshake Authentication Protocol (MS-CHAP). You can use L2TP to authenticate the
endpoints of a VPN tunnel to provide additional security, and you can implement it with IPSec to
provide a secure, encrypted VPN solution.
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Cross Reference: For more complete information on configuring the L2TP Server, see the technote
Configuring the L2TP Server in SonicOS located on the SonicWALL documentation site:
http://www.sonicwall.com/services/documentation.htm.