[c-nsp] Pim multicast problem

[lee.e.rian at census.gov]

Do you have a 'redistribute static' or something like that on R1?
It's not clear if multicasts from 10.0.0.6 will pass the RPF check on R2 or
not.

> This is mroute table on R2

is that a typo?  According to the diagram, R2 doesn't have an interface
vlan151

> #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

Regards,
Lee



"Sergey Velikanov [Intelsoft]" <sv at intelsoft.com> wrote on 05/19/2006
12:17:05 AM:

> 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
>
>
>
>
>
>
>
>
>
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