OPERATION 43
For Windows 95 and Windows NT 4.0 only. When making long-dis- tance calls, the Country 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:
ABOUT 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 servers. While the connection between a client and server is being established, the server 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 encryption and may repeatedly verify the user’s ID any time during the connection.
In response to the server’s request, the client indicates whether or not it supports the same type of authentication. If it does not support the same type of authentication, it may request an alter- native type of authentication. (For example, if the server requests CHAP, but the client only supports PAP, the client will request PAP.) After establishing a type of authentication, the process of verifying the user begins.
Both PAP and CHAP are supported by the Netopia ISDN PC Card.
