Re: OSPF IA advertisements

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