Problem with DHCP Decline Feature in Service Pack 2 (162396)
The information in this article applies to:
- Microsoft Windows NT Workstation 4.0 SP2
- Microsoft Windows NT Server 4.0 SP2
This article was previously published under Q162396 SYMPTOMS
A Windows NT 4.0 Service Pack 2 DHCP client may fail to obtain a DHCP lease
if a duplicate IP address exists on the network. DHCP logs an error in the
event log with event ID 1008.
CAUSE
Windows NT Service Pack 2 includes an update to the DHCP client that
improves the ability of a workstation to handle duplicate IP addresses.
Upon receiving a DHCP lease, it ARPs for the IP address that was assigned.
If a response is received (indicating that the address is already in use by
another device on the network) it issues a DHCP decline to the server. The
server then marks the address as "bad" and does not attempt to assign that
IP address to any device. The client re-issues a DHCP DISCOVER packet and
starts the lease process over again.
For more information on this, please see the following article in the
Microsoft Knowledge Base:
ARTICLE-ID: 161430
TITLE : DHCP: Detecting and Flagging Duplicate IP Addresses
DHCP clients that also have RAS installed on them do not perform this DHCP
decline operation successfully.
RESOLUTION
A new version of Rasarp.sys is available that corrects this problem.
STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0
Service Pack 2.
This problem was corrected in the latest Microsoft Windows NT 4.0 U.S. Service
Pack. For information on obtaining the service pack, query on the following word
in the Microsoft Knowledge Base (without the spaces):
| Modification Type: | Major | Last Reviewed: | 5/14/2003 |
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| Keywords: | kbbug kbnetwork KB162396 |
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