Billion BiPAC 7404V(G)OX User Manual page 92

Username: If you are a Dial-Out user (client), enter the username provided by your Host. If you
are a Dial-In user (server), enter your own username.
Password: If you are a Dial-Out user (client), enter the password provided by your Host. If you are
a Dial-In user (server), enter your own password.
Authentication Type: Default is Auto if you want the router to determine the authentication type
to use, or else manually specify CHAP (Challenge Handshake Authentication Protocol) or PAP
(Password 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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