• Setting Up the 3ComImpact IQ ISDN Modem Using Windows NT 3.51 RAS for a Workstation or Server

• Setting Up a Remote Connection to the Internet Using Windows NT

Setting Up the 3ComImpact IQ ISDN Modem Using Windows NT 3.51 Remote Access Service (RAS) for a Workstation or Server

The ISDN modem should already be physically connected to your PC and ISDN line. Also, it should have already been configured using the 3ComImpact IQ ISDN modem configuration program. If not, please refer to the 3ComImpact IQ ISDN Modem User Guide for instructions.

1. Using the File Manager, locate the Windows NT MODEM.INF file in the %SystemRoot%/System32/RAS directory and rename it MODEM.ORG. For example, if your root directory is windows, you would look for the Windows NT MODEM.INF file in the following directory: C:\windows\System32\RAS
2. Copy the ISDN modem MODEM.INF file to the same directory as the MODEM.ORG file.
3. From the Main Menu, select Control Panel, then select Network.
4. The Network Settings dialog box appears.

   
   Figure 1: Network Settings Dialog Box

5. From the Installed Network Software list box, select Remote Access Service. The Remote Access Setup dialog box appears. (Figure 2)

   
   Figure 2: Remote Access Setup Dialog Box

6. If another modem is already configured for the COM port to which you have connected the 3ComImpact IQ ISDN modem, select it, and then click Remove.
7. Click Add.
   The Add Port dialog box appears.
8. Choose a COM port, and then click OK.
   The Remote Access Setup message box appears.
9. Click Cancel to manually select the ISDN modem.
10. Select 3ComImpact IQ for baud rates up to 115.2 Kbps. Click OK.
    The Remote Access Setup dialog box appears.
11. Click Continue.
12. Click OK to exit the Network Settings dialog box. The Network Settings Change alert box appears.
13. Click Restart Now. Once your computer has rebooted, you are ready to use the ISDN modem.

Setting Up an Internet Connection Using Windows NT 3.51 RAS

1. From the Program Manager, select Remote Access Service.
2. Click on the Remote Access icon. If you have not previously configured a remote access service, you will be prompted to add a new entry. If you have previously configured a remote access service, the Remote Access Service dialog box appears.
3. Click on Add to configure a service for interconnection with the 3ComImpact IQ ISDN Modem. The Add Phone Book Entry dialog box appears.
4. Enter your Internet Service Provider's name or network name.
5. Enter the phone number including any extra digits required for long distance calls, and for outside line access.
6. Select the COM port to which the 3ComImpact IQ ISDN Modem is connected.

   
   Figure 3: Add Phone Book Dialog Box

7. Click Modem. The Modem Settings dialog box appears. (Figure 4)

   
   Figure 4: Modem Settings Dialog Box

8. Check both Enable hardware flow control and Enable modem error control. Review the other modem settings and make desired changes.
9. Click OK.
10. Click Network. The Network Protocol Settings dialog box appears (Figure 5).

    
    Figure 5: Network Protocol Settings Dialog Box

11. Select
12. PPP
and check TCP/IP.
13. Click TCP/IP Settings. The PPP TCP/IP Settings dialog box appears. (Figure 6)
14. Indicate whether the IP address is server assigned or specific. If the IP address is specific, enter the address.

    
    Figure 6: PPP TCP/IP Settings Dialog Box

15. Indicate whether the name server addresses are server assigned or specific. If the name server addresses are specific, enter the addresses.
16. Click OK. The Add Phone Book Entry dialog box appears.
17. Click Security. The Security Settings dialog box appears.
18. Select Accept any authentication including clear text.
19. Click OK.

You are ready to dial your Internet service provider.

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