Alternatives when doing multicast over non multicast network

From: Ivan Ostre¹ (ivan.ostres@snt.hr)
Date: Tue Mar 08 2005 - 12:11:39 GMT-3

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Hello group,

I was thinking about alternatives when doing multicast over non multicast
netwok. Let's say like this:

R1----------R2-----------R3---------R4--clients

R1 is a multicast source while R3 does not "speak" multicast. I've tried using
GRE tunnel over between R2 and R4, and that works ok. Since this is a
preparation for the lab, I've tried to find some alternatives. I was thinking
about following:

1) do destination nat on R2 to some address on R4 and then back to multicast
address on R4 so the clients would receive multicast

2) use a multicast helper to transport multicast trough R3 as a broadcast.

Did anyone tried that? Does it work?

Regards,
Ivan

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