Re: IPV6 Multicast

Yes, problem solved. Thanks a lot for your time, lesson
learnt, everybody should know the RP!

On 15 March 2010 22:21, Joe Astorino <jastorino_at_ipexpert.com> wrote:

> Check out "sh ipv6 pim neighbor" it should show you this information.
> Also, yeah if the receiver, R3 in this case did not know who the RP was and
> was also the PIM DR , I could see why this would be an issue. Like I said,
> make sure everybody always knows the RP and you are much better off.
>
>
>
>
> On Mon, Mar 15, 2010 at 6:20 PM, Muzammil Malick <malickmuz_at_gmail.com>wrote:
>
>> In this case I did not try to influence the DR but R1 is the RP. It was R3
>> the receiver that did not have the RP configured. How exactly do you know
>> who the PIM DR is because
>> if I do show ipv6 pim interface on all routers they all seem to have one
>> interface that shows:
>>
>> DR : this system
>>
>> I am assuming this means that this router is the DR?
>>
>>
>>
>>
>>
>>
>> On 15 March 2010 22:07, Joe Astorino <jastorino_at_ipexpert.com> wrote:
>>
>>> Ah yes, and if thinking about it from R1's point of view...when R0 starts
>>> pinging it becomes a multicast source...now, the DR on the segment will have
>>> to register that source with the RP. If R1 is the DR on the segment and
>>> does not know who the RP is that is a problem.
>>>
>>>
>>>
>>> On Mon, Mar 15, 2010 at 6:04 PM, Joe Astorino <jastorino_at_ipexpert.com>wrote:
>>>
>>>> If the receiver is the router itself perhaps what is happening is that
>>>> your MLD receiver router is itself trying to send the PIM join to the RP.
>>>> Is the receiver router also the PIM DR on the segment by chance? You could
>>>> play with that and see if you get differences.
>>>>
>>>> In general I always say make sure EVERYBODY knows who the RP is. It is
>>>> safer that way : )
>>>>
>>>>
>>>> On Mon, Mar 15, 2010 at 6:00 PM, Muzammil Malick <malickmuz_at_gmail.com>wrote:
>>>>
>>>>> Configuring all routers with static RP, which in my case is R1, solved
>>>>> the problem.But this breaks my understanding of source and receivers.
>>>>>
>>>>> Does this mean that in ipv6 the receiver somehow tries to contact the
>>>>> RP directly?
>>>>> I'm confused!
>>>>>
>>>>>
>>>>> On 15 March 2010 21:54, Joe Astorino <jastorino_at_ipexpert.com> wrote:
>>>>>
>>>>>> I would put the static RP command everywhere even if it is not
>>>>>> technically required. Let's try to narrow down the problem. Which router
>>>>>> is the RP? Is the topology as simple as what you wrote out or is there a
>>>>>> possibility of an RPF failure or something of that nature?
>>>>>>
>>>>>> On Mon, Mar 15, 2010 at 5:51 PM, Muzammil Malick <malickmuz_at_gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> It is static, now when you say all the routers, do I need the RP
>>>>>>> configured on all routers, or just R1 an R2?
>>>>>>>
>>>>>>> This is how I would have done things in ipv4, with the source (R0)
>>>>>>> and the receiver (R3) not needing to have RP info
>>>>>>>
>>>>>>>
>>>>>>> On 15 March 2010 21:41, Joe Astorino <jastorino_at_ipexpert.com> wrote:
>>>>>>>
>>>>>>>> How do you have the RP learned on all your routers? Static or BSR?
>>>>>>>> Is that functioning properly? Do all routers know who the RP is (Assuming
>>>>>>>> you are using sparse-mode and not SSM) ?
>>>>>>>>
>>>>>>>> On Mon, Mar 15, 2010 at 5:36 PM, Muzammil Malick <
>>>>>>>> malickmuz_at_gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Hi can somebody please help me out.
>>>>>>>>>
>>>>>>>>> I have searched the archives and nobody seems to have talked about
>>>>>>>>> this.
>>>>>>>>>
>>>>>>>>> The DOC CD is very vague on this but I am trying to configure
>>>>>>>>> multicast in
>>>>>>>>> the following scenario
>>>>>>>>>
>>>>>>>>> R0 ------- R1 ------ R2 ------- R3
>>>>>>>>>
>>>>>>>>> I have enabled IGP reachability between the routers with EIGRPv6
>>>>>>>>> and have
>>>>>>>>> enabled ipv6 multicast-routing on all routers.
>>>>>>>>>
>>>>>>>>> R3 is joining group using
>>>>>>>>>
>>>>>>>>> ipv6 mld join-group FF04::10
>>>>>>>>>
>>>>>>>>> I am using R0 as a source but when I ping the group FF04::10, R1
>>>>>>>>> and R2 are
>>>>>>>>> pruning the traffic. R1's outgoing interface list is null.
>>>>>>>>>
>>>>>>>>> Now from my ipv4 days this suggests that there is no source that
>>>>>>>>> is interested in receiving traffic for the group. However I have
>>>>>>>>> joined the
>>>>>>>>> group at R3
>>>>>>>>>
>>>>>>>>> Can someone point me at what I am missing or doing wrong?
>>>>>>>>>
>>>>>>>>> R1
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> (155:1:1::1, FF04::10), 00:00:05/00:03:23, flags: SPFT
>>>>>>>>> Incoming interface: FastEthernet1/0
>>>>>>>>> RPF nbr: FE80::C800:8FF:FEE8:1C
>>>>>>>>> Outgoing interface list: Null
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> R2
>>>>>>>>>
>>>>>>>>> (*, FF04::10), 00:32:51/never, RP 155:1:2::1, flags: SPC
>>>>>>>>> Incoming interface: FastEthernet1/1
>>>>>>>>> RPF nbr: FE80::C801:8FF:FEE8:1D
>>>>>>>>> Immediate Outgoing interface list:
>>>>>>>>> FastEthernet1/0, Null, 00:32:51/never
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________________________________
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>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Regards,
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Joe Astorino - CCIE #24347
>>>>>>>> Sr. Technical Instructor - IPexpert
>>>>>>>> Mailto: jastorino_at_ipexpert.com
>>>>>>>> Telephone: +1.810.326.1444
>>>>>>>> Live Assistance, Please visit: www.ipexpert.com/chat
>>>>>>>> eFax: +1.810.454.0130
>>>>>>>>
>>>>>>>> IPexpert is a premier provider of Self-Study Workbooks, Video on
>>>>>>>> Demand, Audio Tools, Online Hardware Rental and Classroom Training for the
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>>>>>>>> www.ipexpert.com
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards,
>>>>>>
>>>>>>
>>>>>>
>>>>>> Joe Astorino - CCIE #24347
>>>>>> Sr. Technical Instructor - IPexpert
>>>>>> Mailto: jastorino_at_ipexpert.com
>>>>>> Telephone: +1.810.326.1444
>>>>>> Live Assistance, Please visit: www.ipexpert.com/chat
>>>>>> eFax: +1.810.454.0130
>>>>>>
>>>>>> IPexpert is a premier provider of Self-Study Workbooks, Video on
>>>>>> Demand, Audio Tools, Online Hardware Rental and Classroom Training for the
>>>>>> Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with
>>>>>> training locations throughout the United States, Europe, South Asia and
>>>>>> Australia. Be sure to visit our online communities at
>>>>>> www.ipexpert.com/communities and our public website at
>>>>>> www.ipexpert.com
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>>
>>>>
>>>>
>>>> Joe Astorino - CCIE #24347
>>>> Sr. Technical Instructor - IPexpert
>>>> Mailto: jastorino_at_ipexpert.com
>>>> Telephone: +1.810.326.1444
>>>> Live Assistance, Please visit: www.ipexpert.com/chat
>>>> eFax: +1.810.454.0130
>>>>
>>>> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand,
>>>> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco
>>>> CCIE (R&S, Voice, Security & Service Provider) certification(s) with
>>>> training locations throughout the United States, Europe, South Asia and
>>>> Australia. Be sure to visit our online communities at
>>>> www.ipexpert.com/communities and our public website at www.ipexpert.com
>>>>
>>>
>>>
>>>
>>> --
>>> Regards,
>>>
>>>
>>>
>>> Joe Astorino - CCIE #24347
>>> Sr. Technical Instructor - IPexpert
>>> Mailto: jastorino_at_ipexpert.com
>>> Telephone: +1.810.326.1444
>>> Live Assistance, Please visit: www.ipexpert.com/chat
>>> eFax: +1.810.454.0130
>>>
>>> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand,
>>> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco
>>> CCIE (R&S, Voice, Security & Service Provider) certification(s) with
>>> training locations throughout the United States, Europe, South Asia and
>>> Australia. Be sure to visit our online communities at
>>> www.ipexpert.com/communities and our public website at www.ipexpert.com
>>>
>>
>>
>
>
> --
> Regards,
>
>
>
> Joe Astorino - CCIE #24347
> Sr. Technical Instructor - IPexpert
> Mailto: jastorino_at_ipexpert.com
> Telephone: +1.810.326.1444
> Live Assistance, Please visit: www.ipexpert.com/chat
> eFax: +1.810.454.0130
>
> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand,
> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco
> CCIE (R&S, Voice, Security & Service Provider) certification(s) with
> training locations throughout the United States, Europe, South Asia and
> Australia. Be sure to visit our online communities at
> www.ipexpert.com/communities and our public website at www.ipexpert.com

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Received on Mon Mar 15 2010 - 22:26:14 ART