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- IGMPv3 - Internet Group Management Protocol Version 3 The latest version (and probably the final version) of IGMP is IGMPv3. IGMPv3 is defined in RFC 3376 and then updated by RFC 4604. The main improvement IGMPv3 has, when compared with IGMPv2, is the support for Source-Specific Multicasting (SSM).
www.omnisecu.com/tcpip/igmpv3.php
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This lesson explains how IGMP version 3 works. IGMP 3 supports source filtering, we can join multicast groups but only from specified source addresses.
- Introduction to Multicast
IGMP so hosts can tell routers they want to receive...
- IGMP Snooping
The first entry tells the switch to forward all IGMP traffic...
- Multicast Routing
Multicast IGMP Version 3; Multicast IGMP Filter; Multicast...
- Introduction to Multicast
Mar 27, 2024 · This blog delves into a comparative analysis of IGMPv2 and IGMPv3, highlighting their key features, differences, and use cases to guide network administrators and IT professionals in making informed decisions on which version to implement.
- IGMPv1 –
- IGMPv2 –
- IGMPv3 –
- IGMPv1 vs IGMPv2 vs IGMPv3
It was the first IGMP version that allowed to explicitly announce its willingness to receive particular multicast traffic. This version had two messages only: The Membership Query was always sent to 224.0.0.1 by multicastrouters,and the Membership Report was always sent by stations to the group that a station wanted to join. There was no message to...
The next version of IGMPamong other IGMP versions had some enhancement – 1. Membership Query was of both types i.e. general (sent to 224.0.0.1) and group-specific (sent to a particular multicast group). The general Membership Query is used to find out all multicast groups that the stations are subscribed to. The group-specific Membership Query is u...
It was introduced as a need to support source-specific multicast. The IGMPv1/IGMPv2 does not have the capability to specify a particular sender. The extensions of the IGMP to support the source-specific multicast led to the creation of the IGMPv3. Related- IGMP Basics
Download the difference table here.
For more information on IGMPv1 IGMPv2 and IGMPv3 watch this video – Reference – https://www.safaribooksonline.com/library/view/ccie-routing-and/9780133590890/ch07lev2sec5.html
With regards to IGMP v1/2/3 it is best to always use v3 on your networking hardware. IGMPv3 should be backwards compatible, and v2 adds support for better control via hosts (to leave a multicast group) and v3 allows sources to only come from a specified sender within a multicast group.
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).
Sep 28, 2024 · Source-Specific Multicast (SSM): IGMPv3 adds support for Source-Specific Multicast, allowing hosts to specify not only the multicast group they are interested in but also the particular sources from which they want to receive traffic.
IGMP version 3 adds the capability for a multicast router to also learn which *sources* are of interest to neighboring systems, for packets sent to any particular multicast address.
