Specify the Default TCP/IP Type of Service (TOS) (Windows NT)

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

Specify the Default TCP/IP Type of Service (TOS) (Windows NT)
Category: Home > Network > Protocols > TCP-IP

This setting specifies the default type of service (TOS) for IP packets generated by the TCP/IP stack. This can be used to manage quality of service (QOS) throughout a network.

Open your registry and find the key below.

Create a new DWORD value called "DefaultTOS" and set it to the 8 bit number represent the default TOS for IP packets.

Restart Windows for the change to take effect.


		DefaultTOS	REG_DWORD	0x00000000 (0)


	HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters

Settings:

System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters]
Name: DefaultTOS
Type: REG_DWORD (DWORD Value)
Value: 0 - 255 (See RFC 791 for a definition of the values)

Related Tweaks

Specify the Default TCP/IP Type of Service (TOS) (Windows 95/98/Me)

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

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