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Windows Server® 2008 TCP/IP Protocols and Services
book

Windows Server® 2008 TCP/IP Protocols and Services

by Joseph Davies
January 2008
Intermediate to advanced
624 pages
14h 16m
English
Microsoft Press
Content preview from Windows Server® 2008 TCP/IP Protocols and Services

IGMP Message Structure

Hosts and routers use IGMP to maintain local subnet host group membership and it is required for hosts that support Level 2 IP multicasting. IGMP messages are sent as IP datagrams with the IP Protocol field set to 2. The resulting IP datagram is then encapsulated with the appropriate Network Interface Layer header and trailer. Figure 7-2 shows the resulting frame.

IGMP message structure showing the IP header and Network Interface Layer header and trailer

Figure 7-2. IGMP message structure showing the IP header and Network Interface Layer header and trailer

In the IP header of IGMP messages, the Source IP Address field is set to the router or host interface that sent the IGMP message and the Destination IP Address field ...

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Publisher Resources

ISBN: 9780735624474Supplemental ContentCatalog PageErrata