Bug Check 0xBC: NETWORK_BOOT_DUPLICATE_ADDRESS
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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.

Important This topic is for programmers. If you are a customer who has received a blue screen error code while using your computer, see Troubleshoot blue screen errors.

NETWORK_BOOT_DUPLICATE_ADDRESS Parameters

The following parameters are displayed on the blue screen.

ParameterDescription

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.

 

 

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