Information Technology Reference
In-Depth Information
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
Tcpip\Parameters\Interfaces\
{<Interface GUID>}
]
"IPAutoConfigurationEnabled"=dword:0
To disable APIPA for all adapters installed in a particular computer, create the following
Registry value—no reboot is necessary:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"IPAutoConfigurationEnabled"=dword:0
■
Note
If either of these Registry entries is not present, the operating system assumes a default value of
1
.
This means that APIPA is turned on and enabled on all Windows Server 2003 servers by default.
How It Works
If you are unable to obtain an IP address from a DHCP server, you should first double-check
your TCP/IP configuration to confirm that the Windows Server 2003 computer is configured to
obtain its IP address automatically. If your TCP/IP configuration is correctly configured and
you haven't received a valid IP address for your subnet, you can use the
ipconfig
utility to
release your current DHCP lease and request a new one.
See Also
Recipe 1-7 for more on configuring an alternate IP configuration
Microsoft KB 220874: “How to Use Automatic TCP/IP Addressing Without a DHCP Server”
9-15. Troubleshooting Remote Administration
Problem
You want to troubleshoot the use of remote administration tools such as the Computer Manage-
ment MMC snap-in on a remote Windows Server 2003 network.
Solution
Using a Command-Line Interface
The following command will verify whether the remote administration exception is configured
on the local computer:
> netsh firewall show service
The following command verifies that a remote computer called
computer1.mycomputer.com
is able to receive connections on TCP port 445:
> portqry -n www.mycompany.com -o 445
