multicast at the data layer (layer 2) non-flooding ?



Hi,

I am looking into multicast in a private network at the data layer.
Basically what I need is multicast which is not flooded within a LAN.
Therefore, if there are 5 hosts connected to a router, I would like to
do layer 2 multicast such that 4 hosts in the network for example can
be in a multicast group without host 5 hearing any of the traffic. I
believe multicast at the data layer does this.

This is a general network question and not related to linux, but I
could not find a general networking group on usenet that is active and
seems to have intelligent readers!

Thank you!
George

.



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