How to Enable PPTP Port for Network Monitor

 Last reviewed: June 5, 1997
Article ID: Q164601
The information in this article applies to:
  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0
  • Microsoft Windows 95

SUMMARY

If you use Network Monitor in Systems Management Server version 1.2 or Network Monitor from the Windows NT Server version 4.0 compact disc, you will not be able to view Point-to-Point Tunneling Protocol (PPTP) or General Routing Encapsulation (GRE) packets. At the time these products were released, it was not known what port would be used for PPTP.

MORE INFORMATION

To view PPTP and GRE packets, follow these steps:

  1. In the parsers directory created by Network Monitor, edit the Tcpip.ini file.

  2. In this file, find the [TCP_HandoffSet] section.

  3. At the bottom of this section, find: 

          5678 = PPTP

  4. Change 5678 to 1723.

  5. Save the file.

When you run Network Monitor, you will now see PPTP session packets, and GRE packets initiated by PPTP.

Additional query words: SMS netmon
Keywords : kbnetwork kbusage NTSrvWkst nttcp
Version : 4.0 1.2
Platform : IDEAS
Issue type : kbhowto

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Last reviewed: June 5, 1997
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