A network designer decides to connect two labs together to test multicast features interoperability. Before the networks are connected together, the network administrator mentions that overlapping multicast IP addresses between the two labs will cause issues because all the routers on the network are provisioned for Source-Specific Multicast using IGMPv3. Which statement about the connectivity of both multicast domains is true?

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A. IGMPv3 can support overlapping multicast IP addresses between the labs SSM with IGMPv3 uses (S,G) channel subscriptions rather than (*,G) group-only subscriptions. Each multicast stream is uniquely identified by the combination of its source IP address and group address, meaning two labs sharing the same multicast group address but using different source addresses will have distinct (S,G) entries throughout the network. Overlap of the group address portion alone causes no ambiguity or forwarding conflict in SSM.

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B. IGMPv3 cannot support overlapping multicast IP addresses between the labs IGMPv3 in SSM mode does support overlapping group addresses because the source IP address differentiates otherwise identical group entries, making conflict impossible.

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C. IGMPv3 requires NAT to support the overlapping multicast IP addresses between the labs NAT is not needed to resolve overlapping group addresses in SSM - the (S,G) channel model inherently handles this without any address translation.

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D. IGMPv3 requires a unique RP when connecting both labs together SSM does not use a Rendezvous Point - RP is a concept specific to Any-Source Multicast using PIM-SM, not SSM, so requiring a unique RP is irrelevant here.

A network designer decides to connect two labs together to test multicast features interoperability. Before the networks are connected together, the network administrator mentions that overlapping mul

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