check out the mroute count may be you have RPF F
Salah
On Fri, Apr 3, 2009 at 5:30 AM, Vincent Tay <vtay.75_at_gmail.com> wrote:
> > Hi Garcia,
> >
> > You are right. It due to RPF failure. However, i got a first
> > successfully ping only. As below is my configuration. Do you think i
> > miss anything? Thanks in advance and Thanks.
> >
> > R5(config-if)#do sh run int lo5
> > Building configuration...
> > Current configuration : 115 bytes
> > !
> > interface Loopback5
> > ip address 191.1.5.5 255.255.255.0
> > ip pim dense-mode
> > ip igmp join-group 239.39.39.39
> > end
> >
> > R5(config-if)#do sh run int ser1/1
> > interface Serial1/1
> > ip address 191.1.125.5 255.255.255.0
> > ip pim dense-mode
> > encapsulation frame-relay
> > ip ospf authentication message-digest
> > ip ospf message-digest-key 1 md5 CISCO
> > ip ospf priority 0
> > serial restart-delay 0
> > frame-relay map ip 191.1.125.1 501 broadcast
> > frame-relay map ip 191.1.125.2 501
> > no frame-relay inverse-arp
> > end
> >
> > R5(config-if)#do sh run | i ip mroute
> > ip mroute 191.1.13.3 255.255.255.255 191.1.125.1
> > R5(config-if)#
> > ---
> > ----------------------------------------------------------------------
> >
> > R1(config)#do sh run int ser1/1
> > Building configuration...
> > Current configuration : 356 bytes
> > !
> > interface Serial1/1
> > ip address 191.1.125.1 255.255.255.0
> > ip pim dense-mode
> > encapsulation frame-relay
> > ip ospf authentication message-digest
> > ip ospf message-digest-key 1 md5 CISCO
> > ip ospf priority 100
> > serial restart-delay 0
> > frame-relay map ip 191.1.125.5 105 broadcast
> > frame-relay map ip 191.1.125.2 102 broadcast
> > no frame-relay inverse-arp
> > end
> > R1(config)#do sh run int ser1/3
> > Building configuration...
> > Current configuration : 183 bytes
> > !
> > interface Serial1/3
> > ip address 191.1.13.1 255.255.255.0
> > ip pim dense-mode
> > encapsulation ppp
> > ip ospf authentication
> > ip ospf authentication-key CCIE
> > serial restart-delay 0
> > end
> > R1(config)#do sh run | i ip mroute
> > ip mroute 191.1.5.5 255.255.255.255 191.1.125.5
> > R1(config)#
> > ---------------------------------------------------------------------
> >
> > R3(config-if)#do sh run int ser1/3
> > Building configuration...
> > Current configuration : 183 bytes
> > !
> > interface Serial1/3
> > ip address 191.1.13.3 255.255.255.0
> > ip pim dense-mode
> > encapsulation ppp
> > ip ospf authentication
> > ip ospf authentication-key CCIE
> > serial restart-delay 0
> > end
> >
> >
> > R3(config-if)#do sh run | i ip mroute
> > ip mroute 191.1.5.5 255.255.255.255 191.1.13.1
> > R3(config-if)#do p 239.39.39.39 repeat 10
> > Type escape sequence to abort.
> > Sending 10, 100-byte ICMP Echos to 239.39.39.39, timeout is 2 seconds:
> > Reply to request 0 from 191.1.125.5, 536 ms.........
> > R3(config-if)#do 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
> > (*, 224.0.1.40), 00:14:56/stopped, RP 0.0.0.0, flags: DCL
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/3, Forward/Dense, 00:14:56/00:00:00
> > R3(config-if)#
> > R5(config-if)#do 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
> > (*, 239.39.39.39), 00:16:50/stopped, RP 0.0.0.0, flags: DCL
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/1, Forward/Dense, 00:16:50/00:00:00
> > Loopback5, Forward/Dense, 00:16:50/00:00:00
> > (191.1.13.3, 239.39.39.39), 00:02:23/00:00:38, flags: LT
> > Incoming interface: Serial1/1, RPF nbr 191.1.125.1, Mroute
> > Outgoing interface list:
> > Loopback5, Forward/Dense, 00:02:23/00:00:00
> > (*, 224.0.1.40), 00:16:50/00:02:46, RP 0.0.0.0, flags: DCL
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/1, Forward/Dense, 00:16:50/00:00:00
> > Loopback5, Forward/Dense, 00:16:50/00:00:00
> > R5(config-if)#
> >
> > R1(config)#
> > *Mar 1 14:17:26.640: IP(0): s=191.1.13.3 (Serial1/3) d=239.39.39.39
> > (Serial1/1) id=1873, ttl=254, prot=1, len=100(100), mforward
> > R1(config)#do 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
> > (*, 239.39.39.39), 00:02:57/stopped, RP 0.0.0.0, flags: D
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/3, Forward/Dense, 00:02:57/00:00:00
> > Serial1/1, Forward/Dense, 00:02:57/00:00:00
> > (191.1.13.3, 239.39.39.39), 00:02:57/00:00:30, flags: T
> > Incoming interface: Serial1/3, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/1, Forward/Dense, 00:02:57/00:00:00
> > (*, 224.0.1.40), 00:17:15/00:01:58, RP 0.0.0.0, flags: DCL
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Serial1/3, Forward/Dense, 00:17:15/00:00:00
> > Serial1/1, Forward/Dense, 00:17:15/00:00:00
> > R1(config)#
> >
> >
> >
> >
> > On Thu, Apr 2, 2009 at 7:14 PM, Luis Garcia <21garcia21_at_gmail.com>
> > wrote:
> > Hi Vincent, I saw the topology, but without seeing your
> > configuration, my first guess would be a rpf failure on R3. Debug ip
> > mpacket on router 3 and see if thats your problem.
> >
> > -Luis
> >
> > On Thu, Apr 2, 2009 at 12:42 PM, Vincent Tay <vtay.75_at_gmail.com>
> > wrote:
> > Hi all,
> >
> > I have a problem with the internetworkexpert lab 6 task 5.2. On R5
> > Ethernet
> > 0/0, igmp join-group 238.38.38.38 was added. Ping is successful on
> > R1 but
> > not on R3. Anyone face this problem before? The respective interface
> > was
> > configured with ip pim dense-mode.
> >
> > Thanks.
> >
> > Regards
> > Vincent
> >
> >
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> >
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>
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Received on Fri Apr 03 2009 - 07:41:17 ART
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