Hi
I’ve three routers in a broadcast
domain: A, B and C.
source ---- WAN ---- A ----- lan
----- C ---- receiver
|
B
A is the one where multicast traffic
arrives from WAN (and also RP in my lab), B is the PIM DR of the lan and C is
where igmp helper-address is configured (pim passive on the lan) pointing to A.
The only way to make the stub igmp
helper-address configuration on router C is to make A as PIM DR.
I’m wondering to understand the
reason ?
Tks
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