multicast - How To Determine How I'm Using IP Multicasting? -


it's understanding ip multicasting works receivers joining ip multicast groups igmp messages, senders sending addresses, , routers addressed in way duplicating message , sending receivers in group.

i've never elected join multicast group. software might use join group on behalf? commonly-used programs send multicast addresses on behalf? tools, command-line tools, expose information? similar ipcs provides shared memory, ps provides processes, etc. i'm interested in linux or osx environments.

use

netstat -g

nb there no duplication. if router has members inside, propagates datagram, once, on inside lan.


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