Windows Driver Kit: Driver Development Tools
Bug Check 0xBC: NETWORK_BOOT_DUPLICATE_ADDRESS
The NETWORK_BOOT_DUPLICATE_ADDRESS bug check has a value of 0x000000BC. This indicates that a duplicate IP address was assigned to this machine while booting off a network.
Parameters
The following parameters are displayed on the blue screen.
| Parameter | Description |
|---|
| 1 | The IP address, shown as a DWORD. An address of the form aa.bb.cc.dd will appear as 0xDDCCBBAA. |
| 2 | The hardware address of the other machine. (For an Ethernet connection, see the following note.) |
| 3 | The hardware address of the other machine. (For an Ethernet connection, see the following note.) |
| 4 | The hardware address of the other machine. (For an Ethernet connection, this will be zero.) |
Note When Parameter 4 equals zero, this indicates an Ethernet connection. In that case, the MAC address will be stored in Parameter 2 and Parameter 3. An Ethernet MAC address of the form aa-bb-cc-dd-ee-ff will cause Parameter 2 to equal 0xAABBCCDD, and Parameter 3 to equal 0xEEFF0000.
Cause
This error indicates that when TCP/IP sent out an ARP for its IP address, it got a response from another machine indicating a duplicate IP address.
When Windows is booting off a network, this is a fatal error.