From: kongck (kongck@xxxxxxxxxxxxxx)
Date: Thu Jan 20 2000 - 22:00:31 GMT-3
here is my scenario:
R2(e0)------------(e0/0)R1(s1/3)-----------(s0)R3(e0)-----------
(RP) 224.0.5.5
224.0.3.3
R2's config:
ip multicast-routing
ip dvmrp route-limit 20000
!
interface Ethernet0
ip address 34.0.191.249 255.255.255.0
ip pim sparse-mode
!
router ospf 77
network 34.0.191.0 0.0.0.255 area 0
!
no ip classless
ip pim rp-address 34.0.191.254
r2#s ip mro
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
Timers: Uptime/Expires
Interface state: Interface, Next-Hop, State/Mode
(*, 224.0.1.40), 20:47:25/00:00:00, RP 34.0.191.254, flags: SJPCL
Incoming interface: Ethernet0, RPF nbr 34.0.191.254
Outgoing interface list: Null
(*, 224.0.3.3), 00:02:42/00:02:59, RP 34.0.191.254, flags: SP
Incoming interface: Ethernet0, RPF nbr 34.0.191.254
Outgoing interface list: Null
(34.0.191.254/32, 224.0.3.3), 00:02:42/00:00:17, flags: PT
Incoming interface: Ethernet0, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 224.0.1.24), 20:46:43/00:02:46, RP 34.0.191.254, flags: SJPC
Incoming interface: Ethernet0, RPF nbr 34.0.191.254
Outgoing interface list: Null
R1's config:
ip multicast-routing
ip dvmrp route-limit 20000
!
interface Ethernet0/0
ip address 34.0.191.254 255.255.255.0
no ip directed-broadcast
ip pim sparse-mode
!
interface Serial1/3
ip address 1.1.1.2 255.255.255.0
no ip directed-broadcast
ip pim sparse-mode
ip igmp join-group 224.0.5.5
clockrate 2015232
!
router ospf 77
network 1.1.1.0 0.0.0.255 area 2
network 34.0.191.0 0.0.0.255 area 0
r1#s ip mro
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
X - Proxy Join Timer Running
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 20:51:26/00:00:00, RP 34.0.191.254, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial1/3, Forward/Sparse, 20:50:22/00:02:03
Ethernet0/0, Forward/Sparse, 20:51:26/00:02:53
(*, 224.0.3.3), 17:02:50/00:02:51, RP 1.1.1.2, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial1/3, Forward/Sparse, 17:02:50/00:02:50
(*, 224.0.5.5), 20:51:26/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial1/3, Forward/Sparse, 20:51:26/00:00:00
R3's config:
ip multicast-routing
ip dvmrp route-limit 20000
!
interface Ethernet0
ip address 24.0.191.253 255.255.255.0
no ip proxy-arp
ip pim dense-mode
ip igmp join-group 224.0.3.3
!
interface Serial0
ip address 1.1.1.1 255.255.255.0
ip pim sparse-mode
!
ip pim rp-address 1.1.1.2
!router ospf 77
network 1.1.1.0 0.0.0.255 area 2
network 24.0.191.0 0.0.0.255 area 2
-----------------------------------------------
My question is I can ping 224.0.5.5 on both R2&R3 even R2&R3 have not
the mroute to 224.0.5.5. R1 can ping 224.0.3.3 but R2 cannot(there is
mroute to 224.0.3.3 on R2).R2&R3 have IOS11.2(18),R1 has IOS12.0(7).
----- Original Message -----
发件人: kongck
收件人: ccielab@groupstudy.com
发送时间: 2000年1月20日 16:08
主题: Multicast Questions
Hi,there
When I use Dense mode or sparse mode(with RP) in my
configuration,sometimes I can ping through the joined Multicast group
,sometimes I cannot .Is it a bug?
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