PPP Connection Setup

This section explains how to set up the basic PPP connection between the host workstation and the ChorusOS target system.

Installing the Remote Access Service

Remote Access Service (RAS) and Dial-Up Networking (DUN) provide the basic serial line and modem connection services.

1. Double-click the My Computer icon on the desktop.

2. Double-click the Dial-Up Networking icon.

3. Install Dial-Up Networking with ChorusOS Cable as the modem type. The ChorusOS Cable modem type is created during the initial installation of the host workstation environment.

Configuring the Serial Cable Connection

1. Select Start | Settings | Control Panel.

2. Double-click the Modems icon.

3. Check Don't detect my modem; I will select it from a list., and then click the Next button.

4. Select ChorusOS Cable from the list.

5. Click the Properties... button.

6. Select 9600 in the Maximum Speed combo box.

7. Click the Connection tab.

8. Click the Advanced... button.

9. Check Record Log File.

10. Confirm your selections, closing each dialog box by clicking the OK or Close button.

Configuring the Remote Access Service

Remote Access Service should be configured after you change the modem configuration.

1. Select Start | Settings | Control Panel.

2. Double-click the Network icon.

3. Click the Services tab.

4. Select Remote Access Services from the list.

5. Click the Properties... button.

6. Select COMx ChorusOS Serial Cable from the list.

7. Click the Configure... button.

8. Select Dial-out and receive calls in the Port Usage group, and then click the OK button.

9. Click the Network... button.

10. Make sure that only TCP/IP is selected in both the Dial-Out Protocols and Server Settings groups.

11. Select Allow any authentication including clear text in the Encryption settings group.

12. Click the Configure... button next to the TCP/IP checkbox.

13. Select Entire network in the Allow remote TCP/IP clients to access group.

14. Select Use static address pool.

15. Enter the range of IP addresses that may be used for PPP.

    The range must contain at least two numbers, as the first number is used by the host workstation and the second by the ChorusOS target system. It is recommended that you use IP addresses on the same network as the Ethernet.

16. Confirm your selections, closing each dialog box by clicking the OK or Close button.

    Windows NT 4.0 reconfigures its network settings and asks to reboot the system. Do not reboot the system yet.

Starting the Remote Access Service at Boot Time

1. Select Start | Settings | Control Panel.

2. Double-click the Services icon.

3. Select Remote Access Server from the list.

4. Click the Startup... button.

5. Select Automatic in the Startup Type group.

6. Click the OK button to close the Service dialog box.

7. Click the Close button to close the Services dialog box.

Adjusting the Auto-Disconnect Timeout

By default, the Remote Access Service disconnects incoming connections after twenty minutes of inactivity, which may not be suitable with a ChorusOS system. You can modify the default behavior by editing the Registry.

1. Select Start | Run.

2. Enter regedit in the field provided to start the Registry Editor.

3. Select

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RemoteAccess\
   Parameters\Autodisconnect

   in the Registry tree view.

4. Change the value from 0x14 to 0x0.

5. Disable the timeout.

6. Exit the Registry Editor.

7. Reboot the Windows NT 4.0 system.

Checking the Remote Access Service

After rebooting, Windows NT 4.0 listens for incoming PPP calls on the serial line. You can run the Remote Access Admin administration tool to see the state of the port.

1. Select Start|Programs|Administrative Tools (Common)|Remote Access Admin to start the application.

2. If Remote Access Service is not started, select Server | Start Remote Access Service....