Farallon Communications NetopiaTM - Manual (Page 43)

Operation 43
For Windows 95 and Windows NT 4.0 only. When making long-dis-
tance calls, the Countr y Code, Area Code, and PBX Prefix (if
required) must be included in the dialing string for the second B-
channel. For example, to make a Multilink PPP connection to the
numbers 1-510-555-1212 and 1-510-555-1213 respectively, the
dialing string would be entered as follows:
A BOUT PPP AUTHENTICATION PROTOCOLS
The Point-to-Point protocol (PPP), when used with Dial-Up Network-
ing or other PPP client applications, allows for authentication of
users dialing into PPP ser vers. While the connection between a
client and ser ver is being established, the ser ver may request
authentication: typically Password Authentication Protocol (PAP) or
Challenge Handshake Authentication Protocol (CHAP). PAP verifies
the user’s plain text ID and password. CHAP is a stronger authen-
tication method. It uses encr yption and may repeatedly verify the
user’s ID any time during the connection.
In response to the ser ver’s request, the client indicates whether
or not it suppor ts the same type of authentication. If it does not
suppor t the same type of authentication, it may request an alter-
native type of authentication. (For example, if the ser ver requests
CHAP, but the client only suppor ts PAP, the client will request PAP.)
After establishing a type of authentication, the process of verifying
the user begins.
Both PAP and CHAP are suppor ted by the Netopia ISDN PC Card.