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- Table of Contents
-
- 06-Network
- 01-VRF
- 02-Interface
- 03-Interface pairs
- 04-Interface collaboration
- 05-4G
- 06-Security zones
- 07-VLAN
- 08-MAC
- 09-DNS
- 10-ARP
- 11-ND
- 12-GRE
- 13-IPsec
- 14-ADVPN
- 15-L2TP
- 16-SSL VPN
- 17-Routing table
- 18-Static routing
- 19-Policy-based routing
- 20-OSPF
- 21-BGP
- 22-RIP
- 23-IP multicast routing
- 24-PIM
- 25-IGMP
- 26-DHCP
- 27-HTTP
- 28-SSH
- 29-NTP
- 30-FTP
- 31-Telnet
- 32-MAC authentication
- 33-MAC address whitelist
- 34-MAC access silent MAC info
- 35-MAC access advanced settings
- 36-IP authentication
- 37-IPv4 whitelist
- 38-IPv6 whitelist
- 39-Wireless
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 25-IGMP | 22.88 KB |
IGMP
Introduction
Internet Group Management Protocol (IGMP) establishes and maintains the multicast group memberships between a Layer 3 multicast device and the hosts on the directly connected subnet.
IGMP has the following versions:
· IGMPv1—IGMPv1 manages multicast group memberships based on the query and response mechanism.
· IGMPv2—Backwards-compatible with IGMPv1, IGMPv2 has introduced a querier election mechanism and a leave-group mechanism.
· IGMPv3—Based on and compatible with IGMPv1 and IGMPv2, IGMPv3 enhances the control capabilities of hosts and the query and report capabilities of IGMP routers.
¡ IGMPv3 introduced two source filtering modes (Include and Exclude). These modes allow a host to receive or reject multicast data from the specified multicast sources.
¡ IGMPv3 introduces IGMP group-and-source queries and IGMP reports carrying group records.
After IGMP is enabled on an interface, the interface can establish and maintain multicast group memberships.
