What is Internet Group Management Protocol (IGMP) querier and how does it work with my Smart Managed Pro, Insight Managed Smart Cloud, or Fully Managed switch? | Answer | NETGEAR Support
IGMP snooping
What is IGMP(Internet Group Management Protocol)? - GeeksforGeeks
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The basic configuration of IGMP Snooping on DGS-1510. | D-Link UK