Registry Tip : TCP Forwarding Buffer Patch


The forwarding buffer used to route packets between interfaces can consume all
available kernel memory in NT 4 SP4. The default is 0xFFFFFFFF. Microsoft
recommends setting:

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\Tcpip\Parameters

Name: MaxForwardBufferMemory

Type: REG_DWORD
Value: 74240
Name: MaxNumForwardPackets
Type: REG_DWORD
Value: 50

See KB Q221926 for updated information.

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