ITsVISTA
Information that makes life easier when it comes to installing, managing, and using Windows Vista.
Start About FAQ Blogroll Shop

ITsVISTA KB-Link: KB2470853

A computer that is running Windows Server 2008 or Windows Vista sends IGMP v1 membership report packets to incorrect destinations

A computer that is running Windows Server 2008 or Windows Vista sends Internet Group Management Protocol (IGMP) v1 membership report packets to incorrect destinations. Therefore, applications or services that use the Internet Group Management Protocol (IGMP) v1 protocol are dropped by the router from the multicast group and do not receive any more traffic.

From a captured network trace, the destination IPv4 address differs from the multicast address in the IGMP v1 membership report. Therefore, the design does not comply with Request for Comments (RFC) 1112.

For example, the following resembles a captured network trace when this issue occurs. The IP address in the destination IPv4 is different from the IP address in the “MulticastAddress” attribute.

Frame: Number = 33, Captured Frame Length = 46, MediaType = ETHERNET
+ Ethernet: Etype = Internet IP (IPv4),DestinationAddress:[MAC address],SourceAddress:[MAC address]
+ Ipv4: Src = IP address, Dest = IP address, Next Protocol = IGMP, Packet ID = 5009, Total IP Length = 32
- Igmp: IGMPv1 membership report
Type: IGMPv1 membership report, 18(0×12)
- Igmpv1:
Unused: 0 (0×0)
CheckSum: 13509 (0x34C5)
MulticastAddress: IP address

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2470853.

Get notified of new posts for FREE via RSS or E-mail

Subscribe to ITsVISTA!

Related Posts