[Contents] [Back] [<< Prev] [Next >>]

Exercise 7.1: Accessing an X.25 Network Through NT Dial-Up Networking
Objective: Learn how to configure Windows NT Dial-Up Networking to connect to an X.25 network provider.

Estimated time: 15 minutes

Windows NT Remote Access Service (RAS) usually is used for modem connections to remote PCs, but you also can use RAS to access an X.25 packet-switching network. RAS supports Packet Assembler/Disassembler (PAD) devices and X.25 smart cards. Alternatively, you can use Windows NT’s Dial-Up Networking to connect to a commercial X.25 provider.
1.Click the Start menu and choose Settings/Control Panel. Double-click the Windows NT Control Panel Network application.
2.Choose the Network application’s Services tab. Choose Remote Access Service from the Network Services list and click the Properties button to invoke the Remote Access Setup dialog box (see Figure 7.13).



[note.gif]



If RAS isn’t installed on your system, you might have to install it. To do so, click the Add button and choose Remote Access Service in the Select Network Service dialog box.
3.In the Remote Access Setup dialog box (refer to Figure 7.13), click the Add button. This invokes the Add RAS Device dialog box (see Figure 7.14). You could use this dialog box to install an X.25 PAD for your system. See the button labeled Install X.25 PAD. A port must be available for the Install X.25 PAD dialog box to appear. A number of X.25 PAD options appear in the Install X.25 PAD dialog box (see Figure 7.15).
4.Close the Install X.25 PAD dialog box, the Add RAS Device dialog box, and the Network application.
5.Click the Start menu and choose Programs, Accessories, Dial-Up Networking. The Dial-Up Networking main window will appear on your screen. Click the New button.
  1. In the New Phonebook Entry dialog box, click the X.25 tab. This tab enables you to specify an X.25 provider and the remote server’s X.25 address. The down arrow to the right of the Network box reveals a list of X.25 providers (see Figure 7.16).