[c-nsp] MSDP and my limited knowledge question

[Mihai Tanasescu]

Hi all,

I have a simple test setup where I'm most likely failing to do something 
right.

It basically looks like this:

My PC --- CPE --- L3 transport network not under my control  -- their 
router (MSDP + BGP + RP here) ---- ( MSDP+ BGP + RP here) C4900 
(192.168.1.1) -- (192.168.1.2) - multicast source (S)

I announce (and originate on the C4900) through BGP the multicast 
sources subnet let's call it: 10.10.10.0/29 which I send to my provider 
(along with the RP/MSDP IP).
MSDP peers are up, everything seems ok.

a) if I put the 10.10.10.0/29 class as directly connected (between C4900 
and S) instead of the 192.168.1.1 and 192.168.1.2 from above -> all 
works ok and I can view the stream on my PC with VLC.

I also see:

(10.10.10.1, 233.224.26.1), 00:00:09/00:02:58, flags: PTA
   Incoming interface: GigabitEthernet1/48, RPF nbr 0.0.0.0
   Outgoing interface list: Null

b) if I put:
10.10.10.1/29 or /32 configured on S on a Loopback interface
and on C4900:
ip route 10.10.10.0 255.255.255.240 192.168.1.2

then I only have:

(10.10.10.1, 233.224.26.1), 00:00:05/00:02:57, flags: PT
   Incoming interface: GigabitEthernet1/48, RPF nbr 192.168.1.2
   Outgoing interface list: Null

the A flag - MSDP Adv candidate is missing
and if I do a: show ip msdp peer <peer ip> advertise-sa, then I see nothing.

What am I missing ?
Am I running into any check that I am failing ?

Can you help me out ?
This subject is quite new to me.

Thanks,
Mihai