In Linux IPv4 protocol implementation: https://man7.org/linux/man-pages/man7/ip.7.html, I can call IP_ADD_MEMBERSHIP to send IGMP Membership Report message, and IP_DROP_MEMBERSHIP to send IGMP leave meassge. But how can I use it to send IGMP query message?
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That is what a multicast router will do. Linux does not include a multicast routing protocol, but you can get one, e.g. PIM. – Ron Maupin Sep 08 '22 at 01:52