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(0x12)
Unused: 0 (0x0)
CheckSum: 13509 (0x34C5)
MulticastAddress: IP address