From: Iamgoingtobeaccie
Date: Tue Feb 20 2007 - 09:38:09 ART
Group,
I have an hub and spoke topology.
R1-->hub
R2-& R3->spokes(R3 has no multicast config)
I have configured pim sparse dense mode on all the interfaces..I have a router R4 whose interface has the join-group command for 224.0.0.1.
The problem when my ping packet is sourced from R2's loopback or ethernet,I am getting response but not when I source it from the serial.
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip pim sparse-dense-mode
!
interface FastEthernet0/0
ip address 130.0.0.2 255.255.255.0
ip pim sparse-dense-mode
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
!
interface Serial0/0.123 multipoint
ip address 172.16.1.2 255.255.255.0
ip pim sparse-dense-mode
ip ospf network point-to-point
ip ospf hello-interval 30
frame-relay map ip 172.16.1.1 201 broadcast
!
R2
******
R1
***
interface Ethernet0/0
ip address 150.5.5.5 255.255.255.0
ip pim sparse-dense-mode
half-duplex
!
interface Ethernet0/1
ip address 160.6.6.6 255.255.255.0
ip pim sparse-dense-mode
half-duplex
!
interface Serial1/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
!
interface Serial1/0.345 multipoint
ip address 172,16,1,1 255.255.255.0
ip pim nbma-mode
ip pim sparse-dense-mode
ip ospf network point-to-multipoint
frame-relay map ip 1.1.11.3 304
R1#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report,
Z - Multicast Tunnel, z - MDT-data group sender,
Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.2.2.2), 00:00:21/stopped, RP 1.1.1.1, flags: SP
Incoming interface: Ethernet0/0, RPF nbr 1.1.13.1, Mroute
Outgoing interface list: Null
(2.2.2.2 , 224.2.2.2), 00:00:21/00:03:08, flags:
Incoming interface: Serial1/0.345, RPF nbr 172.16.1.2
Outgoing interface list:
Ethernet0/0, Forward/Sparse-Dense, 00:00:21/00:03:08
(172.16.1.2, 224.2.2.2), 00:00:22/00:02:46, flags: PT
Incoming interface: Serial1/0.345, RPF nbr 0.0.0.0
Outgoing interface list: Null
(130.0.0.2, 224.2.2.2), 00:00:22/00:03:07, flags:
Incoming interface: Serial1/0.345, RPF nbr 172.16.1.2
Outgoing interface list:
Ethernet0/0, Forward/Sparse-Dense, 00:00:22/00:03:07
(*, 224.0.1.40), 00:29:39/00:02:36, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial1/0.345, Forward/Sparse-Dense, 00:29:39/00:00:00
Ethernet0/0, Forward/Sparse-Dense, 00:29:39/00:00:00
In the above mroute table,OIL for just the serial IP is null.
Please help me troubleshoot this problem.
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