Knowledge Base

IPCONFIG Shows Leftover DHCP Parameters On Non-DHCP Clients

Article ID: 125963

Article Last Modified on 10/10/2003

Microsoft TCP/IP for Windows for Workgroups 3.11
Microsoft Windows for Workgroups 3.2

This article was previously published under Q125963

SYMPTOMS

If you configure your TCP/IP-32 client to use DHCP and then re-configure it not to use DHCP, when you execute the command, "IPCONFIG /ALL", it will show old (DHCP supplied) values for certain parameters. Although, the client will ignore these values and use the local configuration, this may be confusing.

Parameters which may appear incorrectly in IPCONFIG include:

Primary WINS server
Secondary WINS server
Node Type

CAUSE

IPCONFIG is looking at values in the hidden file, DHCP.BIN, which is not updated when the client is switched from being DHCP-configured to manually configured.

WORKAROUND

To work around this problem, remove the hidden file, DHCP.BIN, found in the Windows directory.

STATUS

Microsoft has confirmed this to be a problem in TCP/IP-32 and TCP/IP-32a. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodtcp32 prodtcp 3.11 wfw wfwg

Keywords: KB125963