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EnableBcastArpReply

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Data type

Range

Default value

REG_DWORD

0 | 1

1

Description

Directs TCP to respond to an Address Resolution Protocol (ARP) request even if the source Ethernet address in the request is not unicast. Otherwise, TCP responds only if the Ethernet address is unicast.

Value

Meaning

0

Respond even if the Ethernet address in an ARP request is not unicast.

1

Respond only if the Ethernet address in an ARP request is unicast.

Note Image Note

Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.

Caution Image Caution

Do not set the value of this entry to 0 if you are using Network Load Balancing. Network Load Balancing does not operate properly if non-unicast addresses are permitted.

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