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- IGMP version 3 adds support for “source filtering”. IGMP version 1 and version 2 allow hosts to join multicast groups but they don’t check the source of the traffic. Any source is able to receive traffic to the multicast group (s) that they joined. With source filtering, we can join multicast groups but only from specified source addresses.
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Is IGMP v3 compatible with previous versions?
What is the difference between IGMP V3 and V2?
What is IGMP v1?
What is IGMP version 3?
Do IGMP versions 1 & 2 have protection against multicast traffic?
Does IGMP support source filtering?
IGMP Version 3. IGMP version 3 adds support for “source filtering”. IGMP version 1 and version 2 allow hosts to join multicast groups but they don’t check the source of the traffic. Any source is able to receive traffic to the multicast group (s) that they joined.
Sep 28, 2024 · Understanding the differences between IGMPv2 and IGMPv3 is crucial for optimizing multicast traffic in IP networks. While IGMPv2 provides basic multicast group management functions, IGMPv3 offers advanced features like source-specific multicast and improved security.
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.
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.
- 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
Nov 19, 2016 · This is due to the fact that higher versions understand lower versions for backward compatibility. The other situation you may encounter is having a mix of clients and several routers on a subnet. There is no mechanism for routers configured with a lower IGMP version to detect a router running a higher version IGMP.
Jun 8, 2011 · 1 Accepted Solution. Peter Paluch. Cisco Employee. 06-11-2011 08:37 AM. Sachin, The IGMPv1 was the first widely used version of the protocol that allowed a station to explicitly announce its willingness to receive a particular multicast traffic. This version had two messages only: the Membership Query and a Membership Reply.
