Q177357: DHCP Client Does Not Immediately Renew Address
Article: Q177357
Product(s): Microsoft Windows NT
Version(s): winnt:3.5,3.51,4.0
Operating System(s):
Keyword(s): kbnetwork
Last Modified: 09-AUG-2001
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The information in this article applies to:
- Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
- Microsoft Windows NT Server versions 3.5, 3.51, 4.0
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SYMPTOMS
========
Dynamic host configuration protocol (DHCP) clients may lose their IP address
information for up to five minutes after their DHCP lease has expired.
RESOLUTION
==========
To resolve this problem, obtain the latest service pack for Windows NT 4.0. For
additional information, please see the following article in the Microsoft
Knowledge Base:
Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack
STATUS
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Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.
MORE INFORMATION
================
The following is a small section of RFC 1541 that governs lease expiration
behavior:
4.4.4 Reacquisition and expiration ...
In both RENEWING and REBINDING state, if the client receives no
response to its DHCPREQUEST message, the client should wait one-half
the remaining time until the expiration of T1 (in RENEWING state) and
T2 (in REBINDING state) down to a minimum of 60 seconds, before
retransmitting the DHCPREQUEST message.
If the lease expires before the client receives a DHCPACK, the client
moves to INIT state, MUST immediately stop any other network
processing and requests network initialization parameters as if the
client were uninitialized. If the client then receives a DHCPACK
allocating that client its previous network address, the client SHOULD
continue network processing. If the client is given a new network
address, it MUST NOT continue using the previous network address and
SHOULD notify the local users of the problem.
Additional query words: request comments
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Keywords : kbnetwork
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search
Version : winnt:3.5,3.51,4.0
Issue type : kbprb
Solution Type : kbpending
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