From: Prakash H Somani (pdsccie@rediffmail.com)
Date: Wed Sep 18 2002 - 09:38:15 GMT-3
Hi Friends....
I am struggling with multicasting...can anyone please help ?
Following is the Scenario:
E2--R1 ------Ethernet-----R2
/ \
/ \
/ \
R5 R6
R2 is FrHUB and R5 n R6 are spoke to R2 with single DLCI.
R1 Loopback is my RP. (10.1.1.1)
R2 Mapping agent.
R2 E2 address: 172.31.10.1 is igmp join-group 228.1.1.1
Running Sparse-mode. (Actually tried with Static RP and
Sparse-Dense mode also)
I dont understand why I m not able to ping 228.1.1.1 from R5 or
R6. Following is the config:
R2 Serial interface:
interface Serial0/0.256 multipoint
ip address 172.31.100.2 255.255.255.248
no ip directed-broadcast
ip pim nbma-mode
ip pim sparse-mode
ip ospf message-digest-key 10 md5 wipro
ipx network 256
no ipx split-horizon eigrp 10
no arp frame-relay
frame-relay map llc2 106 broadcast
frame-relay map ipx 256.0000.0000.0005 105 broadcast
frame-relay map ipx 256.0000.0000.0006 106 broadcast
frame-relay map ip 172.31.100.2 105
frame-relay map ip 172.31.100.5 105 broadcast
frame-relay map ip 172.31.100.6 106 broadcast
no frame-relay inverse-arp
end
ip pim send-rp-discovery scope 10
=============================
R6 Serial Interface:
interface Serial0/0
ip address 172.31.100.6 255.255.255.248
no ip directed-broadcast
ip pim sparse-mode
encapsulation frame-relay
ip ospf message-digest-key 10 md5 wipro
ip ospf priority 0
no ip mroute-cache
ipx network 256
no fair-queue
frame-relay map llc2 601 broadcast
frame-relay map ipx 256.0000.0000.0002 601 broadcast
frame-relay map ipx 256.0000.0000.0005 601 broadcast
frame-relay map ip 172.31.100.2 601 broadcast
frame-relay map ip 172.31.100.5 601 broadcast
frame-relay map ip 172.31.100.6 601
no frame-relay inverse-arp
frame-relay lmi-type cisco
end
======================
R5 Config
r5#sh runn int s0/0
Building configuration...
Current configuration:
!
interface Serial0/0
ip address 172.31.100.5 255.255.255.248
ip directed-broadcast
ip pim sparse-mode
encapsulation frame-relay
ip ospf message-digest-key 10 md5 wipro
ip ospf priority 0
no ip mroute-cache
logging event subif-link-status
logging event dlci-status-change
ipx network 256
no fair-queue
frame-relay map ipx 256.0000.0000.0002 501 broadcast
frame-relay map ipx 256.0000.0000.0006 501 broadcast
frame-relay map ip 172.31.100.2 501 broadcast
frame-relay map ip 172.31.100.6 501 broadcast
no frame-relay inverse-arp
frame-relay lmi-type cisco
end
===============
R1 Config:
Current configuration : 161 bytes
!
interface Ethernet5/0
ip address 172.31.10.1 255.255.255.0
ip pim sparse-mode
ip mobile arp
ip igmp join-group 228.1.1.1
half-duplex
ipx network 10
end
r1#sh runn int fa0/0
Building configuration...
Current configuration : 132 bytes
!
interface FastEthernet0/0
ip address 172.31.12.1 255.255.255.0
ip pim sparse-mode
duplex auto
speed auto
ipx network 12
end
RP is available everywhere following is output from R5:
04:49:23: Auto-RP: Received RP-discovery, from 172.31.100.2,
RP_cnt 1, ht 180
04:49:23: Auto-RP: Update (224.0.0.0/4, RP:10.1.1.1), PIMv2 v1
r5#
r5#
r5#sh ip pim rp m
04:50:22: Auto-RP: Received RP-discovery, from 172.31.100.2,
RP_cnt 1, ht 180
04:50:22: Auto-RP: Update (224.0.0.0/4, RP:10.1.1.1), PIMv2 v1
r5#sh ip pim rp ma
r5#sh ip pim rp mapping
r5#sh ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 224.0.0.0/4
RP 10.1.1.1 (?), v2v1
Info source: 172.31.100.2 (?), via Auto-RP
Uptime: 04:29:37, expires: 00:02:50
Group(s): 224.0.0.0/4, Static
RP: 10.1.1.1 (?)
r5#sh ip pim rp-ha
r5#sh ip pim rp-hash 228.1.1.1
RP 10.1.1.1 (?), v2v1
Info source: 172.31.100.2 (?), via Auto-RP
Uptime: 04:30:03, expires: 00:02:24
Following is the mroute table at R2:
r2#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 - Advertised via MSDP
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.39), 04:23:50/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Loopback0, Forward/Sparse-Dense, 04:23:50/00:00:00
Serial0/0.104, Forward/Sparse-Dense, 04:23:50/00:00:00
Ethernet0/0, Forward/Sparse, 04:23:50/00:02:48
(10.1.1.1, 224.0.1.39), 04:23:50/00:02:59, flags: CLT
Incoming interface: Ethernet0/0, RPF nbr 172.31.12.1
Outgoing interface list:
Serial0/0.104, Forward/Sparse-Dense, 04:23:50/00:00:00
Loopback0, Forward/Sparse-Dense, 04:23:50/00:00:00
(10.1.1.1, 224.0.1.39), 04:23:50/00:02:59, flags: CLT
Incoming interface: Ethernet0/0, RPF nbr 172.31.12.1
Outgoing interface list:
Serial0/0.104, Forward/Sparse-Dense, 04:23:50/00:00:00
Loopback0, Forward/Sparse-Dense, 04:23:50/00:00:00
(*, 224.0.1.40), 04:23:50/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Loopback0, Forward/Sparse-Dense, 04:24:02/00:00:00
Serial0/0.104, Forward/Sparse-Dense, 04:24:02/00:00:00
(10.2.2.2, 224.0.1.40), 04:23:13/00:02:55, flags: CLTA
Incoming interface: Loopback0, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/0.104, Forward/Sparse-Dense, 04:23:13/00:00:00
(172.31.24.2, 224.0.1.40), 00:02:05/00:01:24, flags: CLT
Incoming interface: Serial0/0.104, RPF nbr 172.31.24.4
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:02:06/00:03:25
Loopback0, Forward/Sparse-Dense, 00:02:06/00:00:00
(*, 229.1.1.1), 04:24:02/00:00:00, RP 10.1.1.1, flags: SJCL
Incoming interface: Ethernet0/0, RPF nbr 172.31.12.1
Outgoing interface list:
Loopback0, Forward/Sparse-Dense, 04:24:02/00:02:25
(*, 228.1.1.1), 00:01:07/00:02:59, RP 10.1.1.1, flags: SP
Incoming interface: Ethernet0/0, RPF nbr 172.31.12.1
Outgoing interface list: Null
(172.31.100.5, 228.1.1.1), 00:01:31/00:01:28, flags: PT
Incoming interface: Serial0/0.256, RPF nbr 0.0.0.0
Outgoing interface list: Null
I know the last mroute should show me outgoing interface as e0/0
but it has been prunned ...I dont knwo why ??
Thanks in advance.
Regards....Prakash
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:43:55 GMT-3