Re: OSPF IA advertisements

He could do it with prefix-lists, but that's not very scalable.

How would you tag inter-area routes though?

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor / Managing Partner - IPexpert
On Tue, Jul 2, 2013 at 11:14 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:
> Eduardo,
> once the LSAs are in area 0, there is no memory of them coming from area
> (say) 10. So if I understand your request correctly, there is no "native"
> ospf way of doing this.
>
> On the other hand, you could tag your routes with the area it came from at
> the ABRs, and filter based on those tags (also on ABRs).
>
> -Carlos
>
> Eduardo Vazquez @ 02/07/2013 06:57 -0300 dixit:
>
>  Hello,
>>
>> Was wondering if anyone could suggest ways to stop advertisements out of
>> area 0 from a non area 0 from going to in to another non area 0 existing,
>> or future.
>>
>> In other words:
>>
>> A50-----A0----A1
>>                  \----A2
>>
>> If area 50 advertises say O 10.1.50.0/24. Can people suggest a way to
>> stop
>> the route from flooding to a1 a2 and any future areas?
>>
>> Thanks,
>>
>> Ed
>>
>> Hopefully the diagram came out. Doing this on an iPhone.
>>
>>
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>>
> --
> Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
>
>
>
> Blogs and organic groups at http://www.ccie.net
>
> ______________________________**______________________________**
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