NT5 DHCP


Some people have been having trouble making NT5 pick up an IP address from non NT DHCP servers.

The solution appears to be turn APIPA off, here is how to turn off the APIPA IP autoconfiguration at the Win2000 DHCP clients.

(p.s. this is straight out of the online W2K help - go Start Run and type in the following: 

"hh tcpip.chm::/sag_TCPIP_pro_DisableAutoconfiguration.htm"

in case you ever have to refer to it again)

To disable automatic address configuration

1. Open Registry Editor.
To open Registry Editor, click Start, click Run, type regedt32, and then click OK.

Caution
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer. You can also use the Last Known Good Configuration startup option if problems are encountered after manual changes have been applied.

2. In Registry Editor, navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\adapter_name

3. Create the following entry: IPAutoconfigurationEnable: REG_DWORD (note in the help file it's listed incorrectly as IPAutoconfigurationEnabled)

4. Assign a value of 0 to disable Automatic Private IP Addressing (APIPA) support for the selected network adapter.

5. Close Registry Editor.

Notes

If the IPAutoconfigurationEnabled entry is not present, a default value of 1 is assumed, which indicates that APIPA is used.

If multiple adapters are installed, you can disable APIPA for all installed adapters by setting the IPAutoconfigurationEnabled entry to 0 at the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Hope this helps.
Brad Mahugh, MCP in MS-TCP/IP