Re: EIGRP-OSPF Redistribution doesn't reflect the correct next

No apology necessary, I'm just glad you found it. I just didn't want
anybody to have to repeat the information that was already given.
Have fun!

On Fri, Apr 27, 2012 at 3:01 PM, Sidney D'Souza <mail.sidney_at_gmail.com> wrote:
> Apologies for missing that Joe. Thanks guys. Appreciate the explanations.
>
> Regards,
> Sid
> Nobody's really listening, until you make a mistake...
>
> -----Original Message-----
> From: Joe Astorino [mailto:joeastorino1982_at_gmail.com]
> Sent: 27 April 2012 19:02
> To: Sidney D'Souza
> Cc: Marko Milivojevic; Cisco certification
> Subject: Re: EIGRP-OSPF Redistribution doesn't reflect the correct next hop
>
> Read my post carefully...It answers your question.
>
> On Fri, Apr 27, 2012 at 9:22 AM, Sidney D'Souza <mail.sidney_at_gmail.com>
> wrote:
>> That was interesting. It changed the next hop to the 10.1.1.1 after
>> making the interface p2p. What changed in the way ospf works other
>> than timers and no dr/bdr elections?
>>
>> Regards,
>> Sid
>> Nobody's really listening, until you make a mistake...
>>
>> -----Original Message-----
>> From: Marko Milivojevic [mailto:markom_at_ipexpert.com]
>> Sent: 26 April 2012 19:35
>> To: Sidney D'Souza
>> Cc: Joe Astorino; Cisco certification
>> Subject: Re: EIGRP-OSPF Redistribution doesn't reflect the correct
>> next hop
>>
>> In that case, FA will be the next-hop of the original route. Change
>> interface to p2p for entertainment ;-)
>>
>> --
>> Marko Milivojevic - CCIE #18427
>>
>> :: This message was sent from a mobile device. I apologize for errors
>> and brevity. ::
>>
>> On Apr 26, 2012, at 6:51, "Sidney D'Souza" <mail.sidney_at_gmail.com> wrote:
>>
>>> Yes. The redistributing router has eigrp and ospf running on the same
>>> interface.
>>>
>>> Here is the link to the topology
>>>
>>> http://i.imgur.com/zncWW.jpg
>>>
>>>
>>> Regards,
>>> Sid
>>> Nobody's really listening, until you make a mistake...
>>>
>>> -----Original Message-----
>>> From: Joe Astorino [mailto:joeastorino1982_at_gmail.com]
>>> Sent: 26 April 2012 17:28
>>> To: Sidney D'Souza
>>> Cc: Cisco certification
>>> Subject: Re: EIGRP-OSPF Redistribution doesn't reflect the correct
>>> next hop
>>>
>>> Like the other guys on the thread said, you likely have some issue
>>> with the OSPF forwarding address getting set to a non-zero value
>>> during redistribution. This can happen generally if your
>>> redistributing router has OSPF configured to run on the interface
>>> facing towards your redistribution point (in your case, the interface
>>> in the EIGRP domain would have been configured for OSPF). There are
>>> very specific requirements to make the forwarding address a non-zero
>>> value though. Go through this list and see if it rings true for you:
>>> Note that ALL of these must be true.
>>>
>>> These conditions set the forwarding address field to a non-zero address:
>>>
>>> - OSPF is enabled on the ASBR's next hop interface AND
>>> - ASBR's next hop interface is non-passive under OSPF AND
>>> - ASBR's next hop interface is not point-to-point AND
>>> - ASBR's next hop interface is not point-to-multipoint AND
>>> - ASBR's next hop interface address falls under the network range
>>> specified in the router ospf command.
>>>
>>> These rules I have references from the following documentation:
>>> http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008
>>> 0
>>> 09405a
>>> .shtml
>>> You can read more about the rules in the official rfc for OSPFv2 as
>>> well
>>>
>>> HTH
>>>
>>>
>>> --
>>> Regards,
>>>
>>> Joe Astorino
>>> CCIE #24347
>>> http://astorinonetworks.com
>>>
>>> "He not busy being born is busy dying" - Dylan
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
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>>>
>>>
>>>
>>>
>>
>
>
>
> --
> Regards,
>
> Joe Astorino
> CCIE #24347
> http://astorinonetworks.com
>
> "He not busy being born is busy dying" - Dylan
>

-- 
Regards,
Joe Astorino
CCIE #24347
http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
Blogs and organic groups at http://www.ccie.net