RRAS: RIP Routing Stops When System Time Is Changed

ID: Q221497

The information in this article applies to:

Microsoft Routing & Remote Access Service Update for Windows NT Server version 4.0
Microsoft Windows NT Server version 4.0

SYMPTOMS

When you set up a computer running Windows NT 4.0 as a routing information protocol (RIP) router and the system time is changed backward, RIP updates stop until the original time is reached again. This may cause the route to be invalid, and part or all of the network may not work for the time period the RIP updates are seized.

For example, if it is 2:00 A.M. and the time on the server is changed to 1:50 A.M., RIP updates stop and clients may be unable to gain access to parts of the network until the server reaches 2:00 A.M. again.

CAUSE

This behavior occurs because RIP routing uses absolute system time. When the time changes unexpectedly, the RIP routing service does not send updates.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:

http://www.microsoft.com/Windows/ServicePacks/

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. This problem was first corrected in Windows NT 4.0 Service Pack 6.

MORE INFORMATION

The system time change may be an effect of a daylight savings time adjustment or a time change made for any other reason.

Additional query words:

Keywords :
Version : winnt:4.0
Platform : winnt
Issue type : kbbug