Article ID: 279096 - View products that this article applies to.
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When the recipient of multicast packets is on the same LAN segment as the sender of the multicast, the Internet Group Management Protocol (IGMP) router changes the Negative multicast forwarding entries (MFE) to Active, causing the router to forward packets needlessly.
This behavior also creates duplicate packets on the local LAN, which will break any multicast audio or video application.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910The English version of this fix should have the following file attributes or later:
(https://support.microsoft.com/kb/260910/EN-US/ )How to Obtain the Latest Windows 2000 Service Pack
NOTE: Replace the Rtm.dll file with the new version in both the Winnt\System32 folder and the Winnt\System32\Dllcache folder.
Date Time Version Size File name ----------------------------------------------------- 11/06/2000 11:35p 5.0.2195.2667 97,040 Rtm.dll
Microsoft has confirmed that this is a problem in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/249149/EN-US/ )Installing Microsoft Windows 2000 and Windows 2000 Hotfixes
Article ID: 279096 - Last Review: October 21, 2013 - Revision: 3.3