5-12 Netopia ISDN Modem User’s Guide
EndPt ID Class. The Endpt (Endpoint) ID Class pop-up menu lets you choose the method by which an Endpoint ID is assigned. An Endpoint ID is a number that some hosts use to keep track of a particular connection. The available Endpoint ID Classes are None, Locally Assigned, Internet Protocol, IEEE 802.1 MAC, PPP Magic Number, and Public Switched Net Directory. In most cases, you should choose Public Switched Net Directory as the Endpoint ID Class unless your system administrator or ISP tells you to specify one of the other classes.
Endpoint ID. In most cases, you should leave this field empty and leave the Endpoint ID Class set to its default value of 5 (Public Switched Network Directory Number). With these default settings, the ISDN modem will later automatically fill in the Endpoint Identifier with telephone number 1 (DN1). If your endpoint identifier class is not 5, obtain the identifier from your Internet Service Provider and enter it in this field.
CHAP Blocking. Check the CHAP Blocking box to disable the CHAP authentication feature. If this box is checked, the Netopia ISDN Modem will use PAP for authentication. If you are using Multilink PPP, you must check this box to block CHAP authentication.
Serial Port
The Serial Port area lets you specify options for flow control, carrier detect (CD) control, and data terminal ready (DTR) control.
Flow Control. Use the Flow Control pop-up menu to choose the flow control option set up in your communications program. Flow control affects the flow of information between your workstation and the Netopia ISDN Modem. The available flow control options are None, XON/XOFF (software handshake), and RTS/CTS (Request to Send/Clear to Send). RTS/CTS is a hardware handshake protocol. In most cases, you should choose RTS/CTS unless your system administrator or ISP tells you to specify one of the other options.
