From: Joe Higgins (netsat@xxxxxxxxxxxxx)
Date: Wed Aug 14 2002 - 22:07:55 GMT-3
Just to add that if I change serial 1 interface on both rtr A and rtr B
to a subinterface point-to-point it works?
Date: Wed, 14 Aug 2002 19:33:23 -0400
From: Joe Higgins <netsat@optonline.net>
Subject: multicasting sparse mode accross frame relay
To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
Message-id: <3D5AE8C2.91803F33@optonline.net>
MIME-version: 1.0
X-Mailer: Mozilla 4.5 [en] (Win98; I)
Content-type: text/plain; charset=us-ascii
Content-transfer-encoding: 7BIT
X-Accept-Language: en
X-Mozilla-Status2: 00000000
I need some help on a multicasting problem:
I have three routers in the following configuration:
rtrA ser1 <--- > ser1 rtrb ser0 <--> ser0 rtrC
All indicated physical interfaces are running frame relay
rtr C has a 224.0.6.6 igmp join on loop 0
all routers have sparse mode on the intefaces and point to rtr C as the
RP
I cannot ping 224.0.6.6 from rtr A but I can ping it from rtr B
Rtr B sees rtr A as the source of the multicast but it does not have
seria;l 0 as an outgoing interface.
In summary it appears that I cannot route multicast on router B through
its two physical frame relay interfaces.
The following is the relavent configs and show commands after I cleared
all mroutes and only tried pings from rtr A. Any help would be
appreciated.
A#sh ip pim rp
Group: 224.0.1.40, RP: 1.9.12.2, v1, uptime 00:45:48, expires 00:04:17
interface Serial1
ip address 1.9.14.4 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
clockrate 64000
frame-relay map ip 1.9.14.1 200 broadcast
A#p 224.0.6.6
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.0.6.6, timeout is 2 seconds:
.
A#p 224.0.6.6
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.0.6.6, timeout is 2 seconds:
.
---------------------------------------
router B
B#sh ip pim rp
Group: 224.0.1.40, RP: 1.9.12.2, v1, uptime 00:50:28, expires 00:04:13
Group: 224.0.6.6, RP: 1.9.12.2, v2, uptime 00:06:36, expires never
interface Serial0
ip address 1.9.12.1 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
no ip mroute-cache
ipx network 12
frame-relay map ip 1.9.12.2 108 broadcast
no frame-relay inverse-arp
!
interface Serial1
ip address 1.9.14.1 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
no ip mroute-cache
ipx network 14
clockrate 64000
frame-relay map ip 1.9.14.4 100 broadcast
frame-relay interface-dlci 100
no frame-relay inverse-arp
B#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, 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
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:00:27/00:00:00, RP 1.9.12.2, flags: SJCL
Incoming interface: Serial0, RPF nbr 1.9.12.2
Outgoing interface list:
Loopback0, Forward/Sparse-Dense, 00:00:27/00:02:32
Serial1, Forward/Sparse, 00:00:07/00:03:22
(*, 224.0.6.6), 00:00:17/00:02:59, RP 1.9.12.2, flags: SP
Incoming interface: Serial0, RPF nbr 1.9.12.2
Outgoing interface list: Null
(1.9.14.4, 224.0.6.6), 00:00:17/00:02:42, flags: PT
Incoming interface: Serial1, RPF nbr 1.9.14.4
Outgoing interface list: Null
B#
------------------------------------------------------------------------
C#sh ip pim rp
Group: 224.0.1.40, RP: 1.9.12.2, v1, next RP-reachable in 00:01:27
Group: 224.0.6.6, RP: 1.9.12.2, next RP-reachable in 00:01:27
interface Loopback0
ip address 139.9.2.2 255.255.255.0
ip pim sparse
ip ospf network point-to-point
ip igmp join-group 224.0.6.6
interface Serial0
ip address 1.9.12.2 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
frame-relay map ip 1.9.12.1 801 broadcast
frame-relay map ip 139.9.12.1 801 broadcast
no frame-relay inverse-arp
C#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, 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
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:11:40/00:00:00, RP 1.9.12.2, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0, Forward/Sparse, 00:10:46/00:03:01
Loopback0, Forward/Sparse, 00:11:40/00:02:14
(*, 224.0.6.6), 00:11:40/00:00:00, RP 1.9.12.2, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Loopback0, Forward/Sparse, 00:11:40/00:02:18
C#
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:25 GMT-3