Source-10.10.10.10---10.10.10.1 f0/0 R1(rp)--------->rest of multicast network--Listener 188.8.131.52 Assumptions:
R1 has IP sparse mode configured on f0/0, assume rest of multicast config is correct, R1 has ( *,184.108.40.206) in mtable. Source sends a multicast stream with SRC IP 220.127.116.11, 18.104.22.168 ( Source is sourcing it from an IP of loopback) Assume R1 and rest of Multicast network know 22.214.171.124 and rpf checks passes.
With these assumptions in mind, focusing only on R1 ( rp):
1) What will R1 do upon receiving ( 126.96.36.199, 188.8.131.52), will it drop it because source IP is not in the same subnet ( i.e 10.10.10.10)? GNS3 shows very unpredictable behavior sometimes I see R1 passes the traffic, some time it does not so I do not what to believe, unfortunately I do have access to real routers at this time.