The Internet Group Management Protocol (IGMP) is a communications protocol used by hosts and adjacent routers on IPv4 networks to establish multicast group memberships. IGMP is an integral part of IP multicast and allows the network to direct multicast transmissions only to hosts that have requested them.

The Internet Group Management Protocol (IGMP) is a protocol that allows several devices to share one IP address so they can all receive the same data. IGMP is a network layer protocol used to set up multicasting on networks that use the Internet Protocol version 4 (IPv4). Specifically, IGMP allows devices to join a multicasting group.

2025年1月21日 · IGMP是Internet Group Management Protocol的简称，又被称为互联网组管理协议，是TCP/IP协议族中负责IPv4组播成员管理的协议。IGMP用来在接收者主机和与其直接相邻的组播路由器之间建立和维护组播组成员关系。

IGMP通过在接收者主机和组播路由器之间 交互 IGMP报文 实现组成员管理功能，IGMP报文封装在IP报文中。 IGMP有 三个版本,用于IPv4中一个网段内运行与组成员和路由器之间的协议： 版本1. IGMPv1. 版本2. IGMPv2. 版本3. IGMPv3. 用于IPV6中运行与组成员和组成员路由器之间的协议： 版本1. MLDv1， 等同于IGMPv2. 版本2. MLDv2， 等同于IGMPv3. 报文1. 普遍组查询报文. 报文2. 成员报告报文. 普遍组查询报文. 1.周期. 路由器周期发送， 默认每间隔60s发送一次，通过IP …

2024年8月26日 · The IGMP is a critical protocol for managing multicast group memberships and enabling the efficient multicast communication in IP networks. By understanding IGMP, multicasting and related concepts network professionals can optimize data distribution, reduce network traffic and ensure effective multicast service delivery.

2016年3月17日 · IGMP is used to dynamically register individual hosts in a multicast group on a particular LAN. Enabling PIM on an interface also enables IGMP. IGMP provides a means to automatically control and limit the flow of multicast traffic throughout your network with the use of special multicast queriers and hosts.

2017年9月24日 · The Internet Group Management Protocol (IGMP) is used by routers and hosts to manage multicast group membership. This protocol flow describes the following IGMP operations: IGMP query, join...

2025年1月21日 · The Internet Group Management Protocol (IGMP) is a part of the TCP/IP protocol suite used to manage IPv4 multicast group membership. IGMP sets up and maintains membership between receiver hosts and directly connected multicast routers by exchanging IGMP messages between them.

The Internet Group Management Protocol (IGMP) is used by routers and hosts to management multicast group membership. This protocol flow describes the following IGMP operations: You can click on individual message titles in the sequence diagram to …

IGMP helps build up multicasting groups and maintain membership lists. Members may be Hosts or Routers. Multicast Routers maintain a list of groups for each interface (network) they are connected. Each list contains only the groups for which there is at least one member.