From: Jian Gu (guxiaojian@gmail.com)
Date: Tue Jul 25 2006 - 12:30:41 ART
I think the static mroute to RP on R1 is not enough, as multicast traffic
coming from RP will still fail RPF check, so you need a mroute statement
which will cover mroute to both RP and mcast source (on both tunnel end
points). "debug ip mpacket" should tell you more.
On 7/25/06, Hash Aminu <hashng@gmail.com> wrote:
>
> _________________________________________________________
> hello GS
>
>
> i have a problem connecting to discontigous multicast netwotk togather
> using
> GRE tunnels, i have think and think and i have done the following config,
> please could someone tell me the problem with the config that i cannot
> ping
> the multicast group on r4 e0 interface?
>
> the topology is a disection of the one on page 570 routing tcp/ip vol 2
> jeff
> doyle.
> r2 does not have multicast at all and is in the middle.
>
> TIA
> HAsh
>
> PS: the IOS version on the routers
> r4#sh ver
> Cisco Internetwork Operating System Software
> IOS (tm) 2500 Software (C2500-IS-L), Version 12.2(15)T17, RELEASE SOFTWARE
> (fc1)
> Technical Support: http://www.cisco.com/techsupport
> Copyright (c) 1986-2005 by cisco Systems, Inc.
>
>
>
>
>
> r1#wr t
> Building configuration...
>
> Current configuration : 901 bytes
> !
> version 12.2
> service timestamps debug datetime msec
> service timestamps log datetime msec
> no service password-encryption
> !
> hostname r1
> !
> logging queue-limit 100
> !
> ip subnet-zero
> !
> ip multicast-routing
> !
> !
> !
> interface Loopback0
> ip address 1.1.1.255.255.255.0
> ip pim sparse-mode
> !
> interface Tunnel0
> ip unnumbered Ethernet0
> ip pim sparse-mode
> tunnel source Serial0
> tunnel destination 192.168.1.4
> !
> interface Ethernet0
> ip address 10.1.1.1 255.255.255.0
> ip pim sparse-mode
> !
> interface Serial0
> ip address 192.168.0.1 255.255.255.0
> ip pim sparse-mode
> no fair-queue
> !
> interface Serial1
>
> !
> router ospf 1
> log-adjacency-changes
> network 0.0.0.0 255.255.255.255 area 0
> !
> ip http server
> ip classless
> !
> ip pim rp-address 1.1.4.4
> ip mroute 1.1.4.4 255.255.255.255 Tunnel0
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
> login
> !
> end
>
> r1#
> ------------------------------------------------------
>
> hostname r2
> !
> logging queue-limit 100
> !
> ip subnet-zero
> !
> !
> !
> !
> interface Loopback0
> ip address 1.1.2.2 255.255.255.0
> !
> interface Ethernet0
> no ip address
> shutdown
> !
> interface Serial0
> ip address 192.168.0.2 255.255.255.0
> clockrate 64000
> !
> interface Serial1
> ip address 192.168.1.2 255.255.255.0
> clockrate 64000
> !
> router ospf 1
> log-adjacency-changes
> network 0.0.0.0 255.255.255.255 area 0
> !
> ip http server
> ip classless
> !
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
> login
> !
> end
>
> r2
>
> _________________________________________
> !
>
> r4#wr t
> Building configuration...
>
> Current configuration : 906 bytes
> !
> version 12.2
> service timestamps debug datetime msec
> service timestamps log datetime msec
> no service password-encryption
> !
> hostname r4
> !
> logging queue-limit 100
> !
> ip subnet-zero
> !
> ip multicast-routing
> !
> !
> !
> interface Loopback0
> ip address 1.1.4.4 255.255.255.0
> ip pim sparse-mode
> !
> interface Tunnel0
> ip unnumbered Ethernet0
> ip pim sparse-mode
> tunnel source Serial0
> tunnel destination 192.168.0.1
> !
> interface Ethernet0
> ip address 10.1.2.1 255.255.255.0
> ip pim sparse-mode
> ip igmp join-group 239.255.4.4
> !
> interface Serial0
> ip address 192.168.1.4 255.255.255.0
> ip pim sparse-mode
> !
>
> !
> router ospf 1
> log-adjacency-changes
> network 0.0.0.0 255.255.255.255 area 0
> !
> no ip http server
> ip classless
> !
> ip pim rp-address 1.1.4.4
> ip mroute 192.168.0.0 255.255.255.0 Tunnel0
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
> login
> !
> end
>
> r4#
> --------------------------------------------------
>
>
>
> --
> B.Eng, MCP,CCNA, CCNP
>
> _______________________________________________________________________
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This archive was generated by hypermail 2.1.4 : Tue Aug 01 2006 - 07:13:48 ART