VPN Settings
119
DWC-1000 Wireless Controller User’s Guide
Table 6-6. Fields on the L2TP SERVER Page
Field Description
L2TP Server Configuration
Enable L2TP Server
Enables or disable the L2TP server. Choices are:
• Checked = enable L2TP server.
• Unchecked = disable L2TP server.
L2TP Routing Mode
Nat
NAT is a technique that allows several computers on a LAN to share an Internet connection. The
computers on the LAN use a "private" IP address range while the Option port on the router is
configured with a single "public" IP address. Along with connection sharing, NAT also hides
internal IP addresses from the computers on the Internet. Select NAT if your ISP has assigned
only one IP address to you. The computers that connect through the router will need to be
assigned IP addresses from a private subnet (for example:,192.168.10.0).
Classical
Enables or disables classical routing. Choices are:
• Checked = enable classical routing. IP addresses on the LAN will be exposed and be in the
same subnet as the Option. If your ISP assigned an IP address for every computer you use,
select this option.
• Unchecked = disable classical routing.
Enter the range of IP addresses that is allocated to L2TP Clients
Starting IP Address
Enter the starting IP address of the range of IP addresses to assign to connecting users. This IP
address is taken as the server IP address and rest of the addresses in the range are assigned to
clients.
Ending IP Address
Enter the ending IP address of the range of IP addresses to assign to connecting users.
Authentication Supported
PAP
Enables or disables support for Password Authentication Protocol (PAP) authentication method.
PAP is a 2-way handshake protocol designed for use with PPP. Password Authentication
Protocol is a plain text password used on older SLIP systems. It is not secure. Choices are:
• Checked = enable support for PAP.
• Unchecked = disable support for PAP.
CHAP
Enables or disables support for Challenge Handshake Authentication Protocol (CHAP)
authentication method. CHAP is a 3-way handshake protocol that is considered more secure
than PAP. Choices are:
• Checked = enable support for CHAP.
• Unchecked = disable support for CHAP.
MS-CHAP
Enables or disables support for MS-CHAP authentication method. MS-CHAP uses a Microsoft
version of RSA Message Digest 4 challenge-and-reply protocol. This only works on Microsoft
systems and enables data encryption. To select this authentication method causes all data to be
encrypted. Choices are:
• Checked = enable support for MS-CHAP.
• Unchecked = disable support for MS-CHAP.
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