Re: redistribute EIGRP XX to EIGRP YY

Hi Brian,

If you're referring to this -
http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094cb7.shtml#statictointerfaceit's
pretty cool if weird - You don't necessarily need to include
"redistribute static" for the routes to come up as internal to EIGRP

I documented my own exploration of it here -
http://noshut.blogspot.com.au/2011/10/eigrp-and-static-routes.html

Certainly I think the engineers working on EIGRP had a lot of time on their
hands coming up with interesting features for the protocol

Cheers,
Adam

On Fri, Mar 30, 2012 at 10:51 PM, Brian McGahan <bmcgahan_at_ine.com> wrote:

> Unrelated to this, but a lesser known fact about EIGRP, you can originate
> a static route into EIGRP by matching it with a "network" statement under
> the EIGRP process in addition to doing "redistribute static".
>
> Brian McGahan, CCIE #8593 (R&S/SP/Security)
> bmcgahan_at_INE.com
> B
> Internetwork Expert, Inc.
> http://www.INE.com
>
> -----Original Message-----
> From: Carlos G Mendioroz [mailto:tron_at_huapi.ba.ar]
> Sent: Friday, March 30, 2012 6:23 AM
> To: Brian McGahan
> Cc: Joseph L. Brunner; marc edwards; Arista Wirawan;
> ccielab_at_groupstudy.com
> Subject: Re: redistribute EIGRP XX to EIGRP YY
>
> Once again, talked too fast.
> The static route seed metric comes from the "derived" output interface.
> It was 0 in my first test because I made that NULL 0.
> That's better :)
>
> I'm prone to use incomplete induction with way too few samples... LOL
>
> -Carlos
>
> Carlos G Mendioroz @ 30/03/2012 08:16 -0300 dixit:
> > Wow...
> > this prompted me to fire a lab, just for fun, and here's a couple of
> > findings:
> >
> > -distribute connected uses a seed metric that matches the source
> > interface eigrp metric for that interface. In other words, this is the
> > same as including the interface and making it passive.
> >
> > -distribute static uses a seed metric of 0. This surprised me, but I
> > can understand why it does it. Nevertheless, I don't like it that
> > much. A static route ends up being closer than a connected, from the
> > point of view of a remote router.
> >
> > -redistribute eigrp I guess copies the source proto metric. No need to
> > translate (left over from igrp to eigrp ? :)
> >
> > -Carlos
> >
> > Brian McGahan @ 29/03/2012 23:56 -0300 dixit:
> >> TouchC) ;)
> >>
> >> Brian McGahan, CCIE #8593 (R&S/SP/Security) bmcgahan_at_INE.com
> >>
> >> Internetwork Expert, Inc.
> >> http://www.INE.com
> >>
> >> On Mar 29, 2012, at 9:52 PM, "Joseph L.
> >> Brunner"<joe_at_affirmedsystems.com> wrote:
> >>
> >>> What about "Connected" or "static" Brian?
> >>>
> >>> Hee hee heee
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
> >>> Of Brian McGahan
> >>> Sent: Thursday, March 29, 2012 10:43 PM
> >>> To: marc edwards
> >>> Cc: Arista Wirawan; ccielab_at_groupstudy.com
> >>> Subject: Re: redistribute EIGRP XX to EIGRP YY
> >>>
> >>> This is an exception for EIGRP. If you redistribute between two
> >>> EIGRP processes they will automatically translate their metrics, you
> >>> don't need to set it. All other protocols you redistribute into
> >>> EIGRP you have to set a metric or use a default metric.
> >>>
> >>> HTH,
> >>>
> >>> Brian McGahan, CCIE #8593 (R&S/SP/Security) bmcgahan_at_INE.com
> >>>
> >>> Internetwork Expert, Inc.
> >>> http://www.INE.com
> >>>
> >>> On Mar 29, 2012, at 9:10 PM, "marc edwards"<renorider_at_gmail.com>
> wrote:
> >>>
> >>>> With eigrp and rip you have to define metric. so the latter will
> >>>> work. The former will work if you add the 'default-metric' command.
> >>>>
> >>>> hth
> >>>>
> >>>> Marc
> >>>>
> >>>> On Thu, Mar 29, 2012 at 6:57 PM, Arista Wirawan<aristaw_at_gmail.com>
> >>>> wrote:
> >>>>
> >>>>> Hi experts,
> >>>>>
> >>>>> I want ask a basic questions.
> >>>>> When we redistribute between EIGRP, do we have to define metrics?
> >>>>>
> >>>>> router eigrp XX
> >>>>>
> >>>>>
> >>>>> router eigrp YY
> >>>>> redistribute eigrp XX
> >>>>> or
> >>>>> router eigrp YY
> >>>>> redistribute eigrp XX metric 10000 100 255 1 1500
> >>>>>
> >>>>>
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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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Received on Fri Mar 30 2012 - 23:14:39 ART