Wide Area - 1 and 2 Configuration Windows
QuickSET Configuration Guide
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The Security Settings window shown below in
Figure 102
, displays after you click the Security
button on the ISDN Configuration window. The security levels are; PAP, CHAP, and NONE.
Figure 102 ISDN Profile Wizard Security Window
This panel shows the ISDN security level associated with the profile shown in the ISDN Profile
panel. The three levels of security are; CHAP, PAP, and None.
CHAP —
CHAP, or Challenge Handshake Authentication Protocol (the most secure
authentication protocol) uses a three-way handshake to establish authentication.
One of the routers (referred to as the authenticator) challenges the other router, (referred to as the
peer), by generating a random number and sending it, along with the system name. The peer then
applies a one-way hash algorithm to the random number, and returns this encrypted information
along with the system name. The authenticator then runs the same algorithm, and compares the
result with the expected value. This method depends on a password, or secret, known only to both
ends. When you select CHAP, you have to supply the Local Name and Local to Remote
password, and the Remote Name and Remote to Local Password.
PAP —
PAP, or Password Authentication Protocol uses a two-way handshake to verify the
passwords between routers. One router (the peer), sends the system name and password to the
other router.
