Re: OSPF IA advertisements

That will work, yes, butb& he did ask about IA routes. I assume he wants to
keep them as such elsewhere, or maintain the integrity of the routing
domain as it is now.

In any case - I think we need some more information.

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor / Managing Partner - IPexpert
On Tue, Jul 2, 2013 at 3:30 PM, Joe Sanchez <marco207p_at_gmail.com> wrote:
> How about separate processes with redistribution and filtering there?
>
> Regards,
>  Joe Sanchez
>
> ( please excuse the brevity of this email as it was sent via a mobile
> device.  Please excuse misspelled words or sentence structure.)
>
> On Jul 2, 2013, at 3:34 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>
> > Yes, he said, but I assumed that was what described which routes he
> wanted to filter in a pre-filter environment.
> > Again, this is not doable inside the box, AFAIK.
> > -Carlos
> >
> > Marko Milivojevic @ 02/07/2013 17:26 -0300 dixit:
> >>
> >> I think he explicitly asked about the inter-area routes, so I wasn't
> >> even thinking about the externals. I don't think you can set the tags on
> >> internal or inter-area.
> >>
> >> --
> >> Marko Milivojevic - CCIE #18427 (SP R&S)
> >> Senior CCIE Instructor / Managing Partner - IPexpert
> >>
> >>
> >> On Tue, Jul 2, 2013 at 12:02 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> >> <mailto:tron_at_huapi.ba.ar>> wrote:
> >>
> >>    Redistributing and setting external tags, I guess.
> >>    I did not think about the details, as I was more concerned with
> >>    showing that the requested functionality was impossible without
> >>    going outside the box, so to say...
> >>
> >>    -Carlos
> >>
> >>    Marko Milivojevic @ 02/07/2013 15:19 -0300 dixit:
> >>
> >>
> >>        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 <mailto:tron_at_huapi.ba.ar>
> >>        <mailto:tron_at_huapi.ba.ar <mailto: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
> >>        <http://10.1.50.0/24> <http://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.
> >>
> >>
> >>                 Blogs and organic groups at http://www.ccie.net
> >>
> >>
> >>
>