19216811.liveChapter 4: Configuration
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PPTP Connection - Remote Access
Connection Name:
A user-defined name for the connection (e.g. “connection to office”).
Type:
Check
Dial Out
if you want your router to operate as a client (connecting to a remote VPN
server, e.g. your office server), check
Dial In
operates as a VPN server.
~
When configuring your router as a Client, enter the remote
Server IP
Address
(or Domain
Name)
you wish to connection to.
~
When configuring your router as a server, enter the
Private IP Address Assigned to Dial
in User
address.
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.
PPP 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.