From: Shamin (ccie.xpert@gmail.com)
Date: Mon Apr 23 2007 - 05:16:03 ART
Hi,
Do you have the ip nbma-mode on R3 FR interface, If it is a Multipoint
interface.
Everything else looks normal to me.
Regards
Shamin
On 4/22/07, iyux2000@gmail.com <iyux2000@gmail.com> wrote:
>
> Hi, group
>
> I'am working on a topology as follows. All routers join in OSPF area 0.
> R1 is the RP for group 224.1.1.1, and R1 joins 224.1.1.1 group on
> loopback0.
> I'am using AUTORP sparse-dense-mode, R4 is MA.
>
>
> R1(s0.1 p2p) (s0/0)R6
> \ /
> FR--(s0/2.1 multipoing)R4(fa0/1)--(fa3/0)R3(s0/1) - FR
> | \
> R2 (s0/0.1
> p2p) (s0/1)R7
>
> After i configured, i have following situations:
>
> R3,R6 and R7 can not ping 224.1.1.1, but they can receive the correct
> mapping informations in "show ip pim rp mapping".
> But sh ip mroute 224.1.1.1 on R3:
> R3#sh ip mroute 224.1.1.1
>
> (*, 224.1.1.1), 00:00:26/stopped, RP 8.8.1.1, flags: SP
> Incoming interface: FastEthernet3/0, RPF nbr 8.8.20.4
> Outgoing interface list: Null
>
> (8.8.20.4, 224.1.1.1), 00:00:26/00:02:33, flags: PT
> Incoming interface: FastEthernet3/0, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (8.8.30.3, 224.1.1.1), 00:00:15/00:03:23, flags: T
> Incoming interface: Serial0/1, RPF nbr 0.0.0.0
> Outgoing interface list:
> FastEthernet3/0, Forward/Sparse-Dense, 00:00:15/00:03:14
>
> The incoming interface and outgoing interface pair looks fine.
>
> R3#sh ip pim rp mapp
> PIM Group-to-RP Mappings
>
> Group(s) 224.1.1.1/32
> RP 8.8.1.1 (?), v2v1
> Info source: 8.8.4.4 (?), elected via Auto-RP
> Uptime: 00:13:00, expires: 00:02:48
>
> The mapping info on R3 also looks fine.
>
> R6 and R7 has the same problems as R3.
>
> What's wrong in my network, i'am wondering if i hit a IOS bug or
> something?
>
> Any recommedations and suggestions are highly appreciated. If you need
> more information for troubleshooting, please let me know.
>
> Thank you very much for your kindly help.
>
> Cheers.
>
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