[c-nsp] Pim multicast problem

[Sergey Velikanov [Intelsoft]]

I have no idea why pim does't work if I move RP from 'source' router to 'receiver' router,
may be some of yours have it?

My topology is:
			        Source2(192.168.9.6)
					|
				      vlan6
					|
				       [R3]
					|
  Source1(10.0.0.6)==vlan151==>[R1]===vlan999==[R2]==vlan3==>Receiver

R1,R2,R3 share common L2 domain (vlan999)

Source2 this is my own source, Source1 we receive from our partner.
Our partner use PIM-DM, we use PIM-SM.

 >>R1 config

interface Vlan151
  ip address 172.16.224.1 255.255.255.252
  ip pim neighbor-filter 85  ! Deny Pim membership
  ip pim bsr-border
  ip pim sparse-mode
  no ip mroute-cache

interface Vlan999
  ip address R1_ip_addr 255.255.255.192
  ip pim sparse-mode
  no ip mroute-cache
end

! Static RP
ip pim rp-address 192.168.9.1

! Static route for RFP check against Source1
ip route 10.0.0.4 255.255.255.252 172.16.224.2

 >>R2 config

interface Vlan3
  ip address 192.168.10.1 255.255.255.0
  ip pim sparse-mode
end

interface Vlan999
  ip address R2_ip_addr 255.255.255.192
  ip pim sparse-mode
  no ip mroute-cache
end

ip pim rp-address 192.168.9.1


If I set RP on R1 (int lo0; ip addr 192.168.9.1 255.255.255.255; ip pim sparce-mode) everything works fine, but if I move RP on R2
multicast from source1 stop works. But multicast from Source2 works.

I see PIM register message from R3 ( and  multicast from Source2 works)

9w1d: PIM(0): Received v2 Register on Vlan999 from R3_ip_addr
9w1d:      (Data-header) for 192.168.9.6, group 224.2.127.254
9w1d: PIM(0): Send v2 Register-Stop to R3_ip_addr for 192.168.9.6, group 224.2.127.254

but I did not see PIM register from R2.

This is mroute table on R2

#sh ip mroute 224.1.1.3
(*, 224.1.1.3), 01:41:14/stopped, RP 192.168.9.1, flags: SP
   Incoming interface: Vlan999, RPF nbr R2_ip_addr
   Outgoing interface list: Null

(10.0.0.6, 224.1.1.3), 01:41:14/00:02:52, flags: PT
   Incoming interface: Vlan151, RPF nbr 172.16.224.2
   Outgoing interface list: Null


But RP don't know about source of group 224.1.1.3

#sh ip mroute 224.1.1.3
(*, 224.1.1.3), 00:01:53/00:02:51, RP 192.168.9.1, flags: SJC
   Incoming interface: Null, RPF nbr 0.0.0.0
   Outgoing interface list:
     Vlan3, Forward/Sparse, 00:01:53/00:02:51