Re: Internetworkexpert VOL 2 lab 6 task 5.2

Hi all,

Thanks. Managed to solve it. RPF is an issue but in addition, I have to
disable "no ip mroute-cache" on frame-relay (serial 1/1) on R1 and it works.
I dont know if it is due to dynamips bugs or caveats. Anyone can advise?

Thanks.
Regards
Vincent Tay

On Fri, Apr 3, 2009 at 12:41 PM, Salah ElShekeil
<salah.elshekeil_at_gmail.com>wrote:

> 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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Received on Fri Apr 03 2009 - 18:24:30 ART