CautionHKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0 | 1 | 1 |
Directs TCP to respond to an Address Resolution Protocol (ARP) request even when the source Ethernet address in the ARP request is not unicast. Otherwise, it responds only when the Ethernet address is unicast.
| Value | Meaning |
|---|---|
| 0 | Respond even when the Ethernet address in an ARP request is not unicast. |
| 1 | Respond only the Ethernet address in an ARP request is unicast. |
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 when non-unicast addresses are permitted.