Microsoft KB Archive/250663

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Knowledge Base

Description of the TCP/IP Registry Entries in the NetTrans Subkey

Article ID: 250663

Article Last Modified on 1/27/2007


  • Microsoft Windows Millennium Edition
  • Microsoft Windows 98 Second Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95

This article was previously published under Q250663

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


This article describes the TCP/IP registry entries in the NetTrans subkey.


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

The entries in this section must be added to the following registry key:


NOTE: Where n represents a specific TCP/IP-to-network adapter binding.

Value Data type Description
MaxMTU = 16-bit integer String Specifies the maximum size datagram Internet Protocol (IP) that can pass to a media driver. Subnetwork Access Protocol (SNAP) and source routing header (if used on the media) are not included in this value. For example, on an Ethernet network, MaxMTU defaults to 1500. The actual value used is the minimum of the value specified with this parameter and the size reported by the media driver. The default value is the size reported by the media driver; an Ethernet network defaults to 1500 bytes and a Point-to-Point Protocol (PPP) dial-up connection defaults to 576 bytes.
ZeroBroadcast String If this parameter is set to 1, the IP uses zeros-broadcasts ( instead of ones-broadcasts ( Most systems use ones-broadcasts, but some systems derived from Berkeley Style Daemons (BSD) implementations use zeros-broadcasts. Interoperation does not work well on the same network for systems that use different broadcasts. Valid range 0 or 1 (false or true). The default value is 0.

Keywords: kbenv kbinfo KB250663