Multicast groups on my routers

ccnpninjaccnpninja Senior MemberEuropeMember Posts: 1,010 ■■■□□□□□□□
I'm setting a basic multicast lab. 3 routers in a hub and spoke Frame Relay topology.
The hub is the RP (manual config). PIM is the multicast routing protocol, and Sparse mode is chosen.

When I issue show ip pim rp on my routers, I see two multicast groups: and
I don't know where they came from :). Are they default groups?
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