Billion BiPAC 7402G User Manual page 74

3G / ADSL2+ (802.11g) (VPN) Firewall Router
Authentication Protocol) if you know which type the server is using (when acting as a client), or else the
authentication type you want clients connecting to you to use (when acting as a server). When using PAP,
the password is sent unencrypted, whilst CHAP encrypts the password before sending, and also allows
for challenges at different periods to ensure that an intruder has not replaced the client.
Data Encryption: Data sent over the VPN connection can be encrypted by an MPPE algorithm. Default
is Auto, so that this setting is negotiated when establishing a connection, or else you can manually
Enable or Disable encryption.
Key Length: The data can be encrypted by MPPE algorithm with 40 bits or 128 bits. Default is Auto, it is
negotiated when establishing a connection. 128 bit keys provide stronger encryption than 40 bit keys.
Mode: You may select Stateful or Stateless mode. The key will be changed every 256 packets when you
select Stateful mode. If you select Stateless mode, the key will be changed in each packet.
Active as default route: Commonly used by the Dial-out connection which all packets will route through
the VPN tunnel to the Internet; therefore, active the function may degrade the Internet performance.
Active: This function activates or deactivates the PPTP connection. Check Active checkbox if you want
the protocol of tunnel to be activated and vice versa.
Note: When the Active checkbox is checked, the function of Edit and Delete will not be available.
Click Edit/Delete button to save your changes.
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Chapter 4: Configuration