Change TCP/IP Broadcast Address (Windows NT/2000)

Registry Guide for Windows
Part of the WinGuides Network

Registry tweaks, tricks & hacks to optimize, enhance and secure Microsoft Windows.

Change TCP/IP Broadcast Address (Windows NT/2000)
Category: Home > Network > Protocols > TCP-IP

This setting allows Windows to be configured to use zeros-broadcasts (0.0.0.0) instead of ones-broadcasts (255.255.255.255). Most systems use ones-broadcasts, but some systems derived from BSD implementations use zeros-broadcasts.

Open your registry and find the key below. For Windows 2000 instead use the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ Tcpip\Parameters\Interfaces\[Adapter ID] key.

Create a new DWORD value called "UseZeroBroadcast" and set it to "1" to enable 0.0.0.0 broadcasts.

Restart Windows for the change to take effect.


(Default)	REG_SZ	(value not set)
UseZeroBroadcast	REG_DWORD	0x00000001 (1)


	HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[Adapter Name]\Para...

Settings:

System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[Adapter Name]\
Parameters\Tcpip]
Name: UseZeroBroadcast
Type: REG_DWORD (DWORD Value)
Value: (0 = default, 1 = use 0.0.0.0 broadcast)

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last Modified: June 20, 2001

Return to Index