I was able to get a similar set up to work. It was not working until I added the nbma mode. when I checked the multicast table, it was showing the next hop of a different router in the "cloud" so it was failing, when I added nbma mode it worked. that is why we need to see the o/p of the multicast table. "Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear." Thomas Jefferson " Where ignorance is bliss 'tis folly to be wise"
________________________________ From: imad Abdallah <[email protected]> To: [email protected] Sent: Wednesday, November 16, 2011 11:31 AM Subject: Re: [OSL | CCIE_RS] Problem with nbma R1, R2, R3 are using frame-relay ospf nbma mode on the same subnet.Either create two different subnets(between r1-->r2; r2-->r3); or change to point-to-multipoint > Date: Wed, 16 Nov 2011 16:16:53 +0100 > From: [email protected] > To: [email protected] > Subject: [OSL | CCIE_RS] Problem with nbma > > Hi Guys, > > It happens a problem with me very strange. > I'm using the dynamips with the follow configuration: > > R1 > \ > R2----R4 > / > R3 > > The connection between the R1, R2 and R3 is frame-relay and R2 is the HUB. > > My problem is that I had join the R3 to group 226.0.0.3, and R4 is the > auto-rp-mapping and R2 is the auto-rp-announcing. > Everyone is getting the Announce of the R4, I set ip pim nbma in the > interface of the R2, but *R1 isn't able to ping the 226.0.0.3, only ping > the first 2 packets.* > > Someone have a ideia ? Below is the relavant configs: > > > Al routers have > router ospf 1 > log-adjacency-changes > network 0.0.0.0 255.255.255.255 area 0 > > R1 > > interface Serial1/0 > ip address 192.168.123.1 255.255.255.0 > ip pim nbma-mode > ip pim sparse-mode > encapsulation frame-relay > serial restart-delay 0 > frame-relay map ip 192.168.123.2 102 broadcast > frame-relay map ip 192.168.123.3 102 > no frame-relay inverse-arp > > router ospf 1 > log-adjacency-changes > network 0.0.0.0 255.255.255.255 area 0 > > > R2 > > interface Serial1/0 > ip address 192.168.123.2 255.255.255.0 > ip pim dr-priority 1000 > ip pim nbma-mode > ip pim sparse-mode > encapsulation frame-relay > no ip mroute-cache > ip ospf priority 255 > serial restart-delay 0 > frame-relay map ip 192.168.123.1 201 broadcast > frame-relay map ip 192.168.123.3 203 broadcast > no frame-relay inverse-arp > > ip pim autorp listener > ip pim send-rp-announce Loopback0 scope 10 > > R3 > interface Serial1/0 > ip address 192.168.123.3 255.255.255.0 > ip pim nbma-mode > ip pim sparse-mode > encapsulation frame-relay > serial restart-delay 0 > frame-relay map ip 192.168.123.2 302 broadcast > frame-relay map ip 192.168.123.1 302 > no frame-relay inverse-arp > end > interface Loopback0 > ip address 3.3.3.3 255.255.255.0 > ip pim sparse-mode > ip igmp join-group 226.0.0.3 > > > R4 > ip pim autorp listener > ip pim send-rp-discovery Loopback0 scope 10 > _______________________________________________ > 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 _______________________________________________ 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 _______________________________________________ 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
