Hello
I have the topology in the image. I am trying to allow for R3, at the bottom left to join a multicast stream served by R4, top right.
R1 is the RP. The PIM areas are as per the oval groupings. PIM is enabled on all interfaces but blocked between the two sparse mode regions.
On R3 I issue ip igmp join-group 239.0.0.1 and get (*,G) up to R1. On R4 I ping 239.0.0.1 and get (S,G) on partner 1.
The entire lab is running ospf, all in the same area and everything can ping everything. I get pim neighbors everywhere except for between NXOS1 and Partner1, as planned.
It is set up like this as PIM is not going to be configured between NXOS1 and Partner1.
The only way that I can get this to work is to issue ip igmp join-group 239.0.0.1 on NXOS1. Everything works perfectly if I do this.... however, I don't want the NXOS1 to be a receiver, I just want the IGMP requests from R3 to reach Partner1.
On IOS there is the ip igmp helper-address feature which shows me the igmp joins up through the topology except for on NXOS which doesn't even register the IGMP reports. I find nothing of the sort on NXOS so cannot get the IGMP joins to reach the Partner1 router. Can anyone let me know what I can do to resolve this without issuing the ip igmp join-group command on the NXOS1 router towards the Partner1 router please?
