I've been there bud. Now the real fun is to leave it on the ppp link and also enable it on your frame relay and start playing with your routing protocol metrics to create and fix RPF issues.
Respectfully, Ryan Krcelic CCIE #38087 Sent from my iPhone On May 6, 2013, at 5:43 PM, Houssam Chahine <[email protected]> wrote: > Dear Ryan, > > you are totally right. it seems i need some rest. I configured pim sparse on > the ppp link of R2 (s 1/1) instead of serial 1/0. I read the interfaces > config many times and i don't now how i didn't see it. In my mind it was that > sparse was configured on the right interface. > > Thank you once again for your thorough support. > > > On Mon, May 6, 2013 at 4:52 PM, Bodnar, Edward <[email protected]> > wrote: >> Your only seeing 1/2 of your multicast tree. I would take a look at the >> path from the ping to the RP. Thinking something is broken along that path. >> >> >> I use these 3 commands and 90% the time it reveals what the issue is. Mtrace >> would be another good tool to check that path >> >> Sh ip pim neigh >> Sh ip pi mint >> Sh ip pim rp map >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Ryan Krcelic >> Sent: Monday, May 06, 2013 9:44 AM >> To: Houssam Chahine; [email protected] >> Subject: Re: [OSL | CCIE_RS] Multicast issue >> >> It looks as though you don¹t have sparse mode enabled on your serial >> interface on R2. If you do a show ip pim neighbor, do you have any? >> >> For the R2-> R5 link, do you have a second Serial link that is connecting >> those two routers. In the IP expert books, that is usually the PPP link. >> If you are running pim on the PPP link, that would explain why you could >> ping .2 and .5 from R2 and R5. >> >> V/r, >> >> Ryan Krcelic >> >> >> >> From: Houssam Chahine <[email protected]> >> Date: Mon, 6 May 2013 15:53:31 +0300 >> To: "[email protected]" <[email protected]> >> Subject: [OSL | CCIE_RS] Multicast issue >> >> Good day >> >> I need your help on the below. >> >> i have multicast running in sparse mode on the loopback 1 interfaces and >> the serial links of the Frame Relay with R2 the hub. >> >> I am able to ping both groups 225.0.0.2 and 225.0.0.5 from R2 and R5 but >> not from R6. >> >> below are the interfaces config and the output of the debug ip mrouting >> command. Thank you in advance. >> >> R2 >> >> interface Serial1/0 >> ip address 141.41.26.2 255.255.255.0 >> ip pim nbma-mode >> encapsulation frame-relay >> ip ospf message-digest-key 1 md5 cisco >> ip ospf network broadcast >> ip ospf priority 255 >> ip ospf 1 area 256 >> frame-relay map ip 141.41.26.2 205 >> frame-relay map ip 141.41.26.5 205 broadcast >> frame-relay map ip 141.41.26.6 206 broadcast >> no frame-relay inverse-arp >> end >> >> >> interface Loopback1 >> ip address 2.2.2.2 255.255.255.255 >> ip pim sparse-mode >> ip igmp join-group 225.0.0.2 >> end >> >> >> >> R5 >> >> interface Serial1/0.1 multipoint >> ip address 141.41.26.5 255.255.255.0 >> ip pim nbma-mode >> ip pim sparse-mode >> ip ospf message-digest-key 1 md5 cisco >> ip ospf network broadcast >> ip ospf priority 0 >> ip ospf 1 area 256 >> frame-relay map ip 141.41.26.2 502 broadcast >> frame-relay map ip 141.41.26.5 502 >> frame-relay map ip 141.41.26.6 502 >> end >> >> interface Loopback1 >> ip address 5.5.5.5 255.255.255.255 >> ip pim sparse-mode >> ip igmp join-group 225.0.0.5 >> ip ospf 1 area 0 >> end >> >> >> R6 >> >> interface Serial1/0 >> ip address 141.41.26.6 255.255.255.0 >> ip pim nbma-mode >> ip pim sparse-mode >> encapsulation frame-relay >> ip ospf message-digest-key 1 md5 cisco >> ip ospf network broadcast >> ip ospf priority 0 >> ip ospf 1 area 256 >> frame-relay map ip 141.41.26.2 602 broadcast >> frame-relay map ip 141.41.26.5 602 >> frame-relay map ip 141.41.26.6 602 >> no frame-relay inverse-arp >> end >> >> interface Loopback1 >> ip address 6.6.6.6 255.255.255.255 >> ip pim sparse-mode >> ip igmp join-group 225.0.0.6 >> ip ospf 1 area 0 >> end >> >> >> >> R2 >> >> (*, 225.0.0.2), 02:45:13/00:02:28, RP 2.2.2.2, flags: SJCL >> Incoming interface: Null, RPF nbr 0.0.0.0 >> Outgoing interface list: >> Loopback1, Forward/Sparse, 02:45:13/00:02:28 >> >> (*, 224.0.1.40), 02:54:19/00:02:32, RP 2.2.2.2, flags: SJCL >> Incoming interface: Null, RPF nbr 0.0.0.0 >> Outgoing interface list: >> Serial1/1, Forward/Sparse, 02:54:19/00:02:32 >> >> R5 >> >> (*, 225.0.0.5), 02:44:18/00:01:59, RP 2.2.2.2, flags: SJCLF >> Incoming interface: Serial1/0.1, RPF nbr 141.41.26.2 >> Outgoing interface list: >> Loopback1, Forward/Sparse, 02:44:18/00:01:59 >> >> (*, 224.0.1.40), 02:44:48/00:02:52, RP 2.2.2.2, flags: SJCL >> Incoming interface: Serial1/0.1, RPF nbr 141.41.26.2 >> Outgoing interface list: >> Loopback1, Forward/Sparse, 02:44:48/00:02:52 >> >> R6 >> >> (*, 225.0.0.6), 02:43:27/00:02:27, RP 2.2.2.2, flags: SJCLF >> Incoming interface: Serial1/0, RPF nbr 141.41.26.2 >> Outgoing interface list: >> Loopback1, Forward/Sparse, 02:43:27/00:02:27 >> >> (*, 224.0.1.40), 02:43:41/00:02:26, RP 2.2.2.2, flags: SJCL >> Incoming interface: Serial1/0, RPF nbr 141.41.26.2 >> Outgoing interface list: >> Loopback1, Forward/Sparse, 02:43:41/00:02:26 >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
