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T1000A's avatar
T1000A
Aspirant
Sep 04, 2017
Solved

Setting up IGMP snooping on S3300's VLAN1

Dear all,

 

I am facing an issue while setting up IGMP Snooping on my s3300 Network switch. It seems to be that switch support only the IGMP Version 1 & 2. 

Is it right?

So I have set up Windows 10 computer to use IGMP V2.

 

However, my problem is that  the IGMP Snooping table is empty and switch flood the traffice to all ports.

 

I have setup the switch according to this instruction.

https://support.biamp.com/Tesira/AVB/Configuring_IGMP_Snooping_on_the_Netgear_GS724Tv4

 

only one different is, that I have use VLAN 1 instead of 11 (in Figure 3 you see VLAN 11).

 

 

my setup is 2 Cameras 2 computers.  Each cameras send packet to different multicast groups e.g 239.0.0.1 & 239.0.0.2

The computer 1 is in first multicast group and the 2ed PC is in 2ed group.

 

Can anyone give me any hint why the switch flood the traffic to all ports?

  • Hi,

     

    The issue is like that the Guide is not entirely correct :)

     

    For example: "Note: Query Mode is required only when working with multiple switches, but it can be safely enabled on a standalone switch." is not correct. You need a querier at all times, even if it is a standalone switch. Maybe you did not setup a querier?

     

    Please try and follow these steps:

    1. Enable IGMP snooping globally.
    2. Enable IGMP snooping on the relevant VLAN (VLAN 1) under the "IGMP VLAN configuration".
    3. Enable IGMP Querier globally.
    4. Leave the global address at 0.0.0.0.
    5. Set instead a Querier IP address per VLAN under the "Querier VLAN configuration". Set the "IP" to 1.1.1.1 for VLAN 1 (which you are using). The querier IP is only used for an election system, so 1.1.1.1 is fine here.
    6. Make sure “Querier Election Participation Mode” is enabled in case you decide to add more switches.

     

    Hope that helps :)

5 Replies

  • Hi,

     

    The issue is like that the Guide is not entirely correct :)

     

    For example: "Note: Query Mode is required only when working with multiple switches, but it can be safely enabled on a standalone switch." is not correct. You need a querier at all times, even if it is a standalone switch. Maybe you did not setup a querier?

     

    Please try and follow these steps:

    1. Enable IGMP snooping globally.
    2. Enable IGMP snooping on the relevant VLAN (VLAN 1) under the "IGMP VLAN configuration".
    3. Enable IGMP Querier globally.
    4. Leave the global address at 0.0.0.0.
    5. Set instead a Querier IP address per VLAN under the "Querier VLAN configuration". Set the "IP" to 1.1.1.1 for VLAN 1 (which you are using). The querier IP is only used for an election system, so 1.1.1.1 is fine here.
    6. Make sure “Querier Election Participation Mode” is enabled in case you decide to add more switches.

     

    Hope that helps :)

    • T1000A's avatar
      T1000A
      Aspirant
      Dear Hopchen,
       
       
       
       
       
       
       
       
      thank you very much for your quick help. It is working as expected.
      • Hopchen's avatar
        Hopchen
        Prodigy

        Hi,

         

        No problem at all :) Happy to help!

         

        Glad to hear you have it working now.

  • JohnC_V's avatar
    JohnC_V
    NETGEAR Employee Retired

    Hi T1000A,

     

    Welcome to the community!

     

    I encourage you to mark the appropriate reply as the “Accepted Solution” so others can be confident in benefiting from the solution. The NETGEAR Community looks forward to hearing from you and being a helpful resource in the future!

     

    Regards,

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