From: Ivan (ivan@iip.net)
Date: Tue Feb 20 2007 - 10:37:12 ART
224.0.0/24 - it is link-local addresses. PAcket with dst address from this
pool has TTL = 1. Therefore you can't use it for buildig shortest or shared
path tree.
224.0.0.1 - it address of all hosts on the lokal link.
On Tuesday 20 February 2007 15:38, Iamgoingtobeaccie Iamgoingtobeaccie wrote:
> 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.
>
>
> ---------------------------------
> Heres a new way to find what you're looking for - Yahoo! Answers
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
-- Ivan
This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:47 ART