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Virtual Private Networks (VPNs) 4-11
MS-CHAP V2 and 128-bit strong encryption
Notes:
■ The Netopia Firmware Version 5.4 supports 128-bit (“strong”) encryption when using PPTP tunnels.
ATMP does not have an option of using 128-bit MPPE. If you are using ATMP between two Netopia routers
you can optionally set 56-bit DES encryption.
■ When you choose MS-CHAP as the authentication method for a PPTP tunnel, the Netopia router will start
negotiating MS-CHAPv2. If the router or VPN adapter client you are connecting to does not support
MS-CHAPv2, the Netopia router will fall back to MS-CHAPv1, or, if the router or VPN adapter client you are
connecting to does not support MPPE at all, the PPP session will be dropped. This is done automatically
and transparently.
ATMP/PPTP Default Profile
The WAN Configuration menu offers a ATMP/PPTP Default Profile option. Use this selection when your router is
acting as the server for VPN connections, that is, when you are on the answering end of the tunnel
establishment. The ATMP/PPTP Default Profile determines the way the attempted tunnel connection is
answered.
To set the parameters under which the router will answer attempted VPN connections, select ATMP/PPTP
Default Profile and press Return. The ATMP/PPTP Default Profile screen appears.
WAN Configuration
WAN (Wide Area Network) Setup...
Display/Change Connection Profile...
Add Connection Profile...
Delete Connection Profile...
WAN Default Profile...
ATMP/PPTP Default Profile...
Scheduled Connections...
Configuration Changes Reset WAN Connection: Yes