it may be time to take a look at 'debug ip mpacket' on the various routers and see what is or is not happening. The other thing to consider is that a multicast group cannot have the same interface in the IIL and OIL, so there may be other issues there! But there are lots of things with multicast that have the ability of causing hair loss. :) Let the debugs help you. It appears that you have two separate interfaces there, so I'm thinking the debugs will be the best assistance.
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M #153, JNCIS-ER, CISSP, et al. CCSI/JNCI-M/JNCI-ER VP - Technical Training - IPexpert, Inc. IPexpert Sr. Technical Instructor A Cisco Learning Partner - We Accept Learning Credits! [EMAIL PROTECTED] Telephone: +1.810.326.1444 Fax: +1.810.454.0130 http://www.ipexpert.com _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Amit Singh Sent: Thursday, January 03, 2008 3:20 PM To: [email protected] Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 24, Issue 3 Hi team, In one of my Lab, i am unable to ping a multicast group from one of my spoke router R5. My upstream router R3 is able to ping it though. I am connected on a p-2mp FR network. my Hub router R3 is able to ping the group address. Switch connected to hub router is the MA. RP is the R1 router connected to the switch. R1 is the primary RP and R3 is the back RP for the same groups. What could be the reason. I have unicast connectivity to the router who has joined the groups 224.2.2.2, 224.3.3.3. Here is the "show ip pim rp mapp" from R5 R5#sh ip pim rp mapp PIM Group-to-RP Mappings Group(s) 224.2.2.2/32 RP 7.7.7.1 (?), v2v1 Info source: 7.7.12.254 (?), elected via Auto-RP Uptime: 00:49:28, expires: 00:02:02 Group(s) 224.3.3.3/32 RP 7.7.7.1 (?), v2v1 Info source: 7.7.12.254 (?), elected via Auto-RP Uptime: 00:49:28, expires: 00:02:02 Here is the Show IPmroute from my R5 (*, 224.2.2.2), 00:38:45/stopped, RP 7.7.7.1, flags: SPF Incoming interface: Serial0/1/0, RPF nbr 7.7.11.3 Outgoing interface list: Null (7.7.55.254, 224.2.2.2), 00:34:05/00:02:54, flags: PFT Incoming interface: FastEthernet0/0, RPF nbr 0.0.0.0 Outgoing interface list: Null (*, 224.0.1.40), 00:39:14/stopped, RP 0.0.0.0, flags: DCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Serial0/1/0, Forward/Sparse, 00:39:14/00:00:00 (7.7.12.254, 224.0.1.40), 00:38:46/00:02:51, flags: PLTX Incoming interface: Serial0/1/0, RPF nbr 7.7.11.3 Outgoing interface list: Null What could be the problem ??
