NoteHKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | (Not in registry) | 0 | 1 | (Not in registry) |
Enables or disables source routing for IP broadcasts.
Some environments require source routing data, but some transparent bridges discard frames with source routing information when passing them to different media types, such as Ethernet. This entry lets you customize the setting of the source routing bit to suit your environment.
| Value | Meaning |
|---|---|
| (Not in registry) | TCP/IP transmits ARP queries without source routing on the first attempt. If it does not receive a reply, it retransmits the query with source routing. |
| 0 | ARP queries (and other IP broadcasts) are never sent with source routing. |
| 1 | ARP queries always are sent with source routing. |
Note
The implementation of this entry changed for Windows NT 4.0 with Service Pack 2. This description pertains only to Windows 2000 and Windows NT 4.0 with Service Pack 2 and later. To interpret the values of this entry for Windows NT 4.0 (previous to Service Pack 2) and earlier, see the Windows NT Resource Kit 4.0.
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.