Re: NULL0 with EIGRP

From: Narbik Kocharians (narbikk@gmail.com)
Date: Sun Feb 22 2009 - 15:33:17 ARST

Correct. I agree with NET HE

On Sun, Feb 22, 2009 at 8:30 AM, NET HE <he_net@hotmail.com> wrote:

> OSPF doesn't see default route generation as routes summariztion.
>
> Best Regards,
> Net (Xin) He
>
>
>
>
> > Date: Sun, 22 Feb 2009 21:49:05 +0530
> > Subject: Re: NULL0 with EIGRP
> > From: nadeem.ansari574@gmail.com
> > To: he_net@hotmail.com
> > CC: narbikk@gmail.com; ccie.mahmoud@gmail.com; ccielab@groupstudy.com
>
> >
> > In OSPF there wont be any problem while doing default route origination
> > using "default-information originate always" as it does not add any route
> in
> > routing table pointing towards Null interface
> >
> > Why it does not do that ? Simple because OSPF originate and distribute
> LSAs
> > not routing updates :)
> > Regards
> > Nadeem
> >
> > On Sun, Feb 22, 2009 at 9:42 PM, NET HE <he_net@hotmail.com> wrote:
> >
> > > -RIP doesn't generate a route pointing towards NULL interface in
> routing
> > > table whild doing summarization.
> > >
> > > -EIGRP as I answered in previous mail.
> > >
> > > -OSPF uses ospf process command "discard-route internal/external 255"
> > >
> > >
> > > Best Regards,
> > > Net (Xin) He
> > >
> > >
> > >
> > >
> > > ------------------------------
> > > Date: Sun, 22 Feb 2009 21:29:24 +0530
> > > Subject: Re: NULL0 with EIGRP
> > > From: nadeem.ansari574@gmail.com
> > > To: narbikk@gmail.com
> > > CC: he_net@hotmail.com; ccie.mahmoud@gmail.com; ccielab@groupstudy.com
> > >
> > >
> > > Is there any way while doing summarization which will avoid installing
> a
> > > route pointing towards Null interface in routing table
> > > Regards
> > > Nadeem
> > >
> > > On Sun, Feb 22, 2009 at 7:12 AM, Narbik Kocharians
> > <narbikk@gmail.com>wrote:
> > >
> > > Static route will do the same.
> > >
> > > On Sat, Feb 21, 2009 at 5:38 PM, NET HE <he_net@hotmail.com> wrote:
> > >
> > > > Use the eigrp summary-address interface command with AD as 255.
> > > >
> > > > Best Regards,
> > > > Net (Xin) He
> > > >
> > > >
> > > >
> > > >
> > > > > Date: Sun, 22 Feb 2009 11:06:25 +1100
> > > > > Subject: NULL0 with EIGRP
> > > > > From: ccie.mahmoud@gmail.com
> > > > > To: ccielab@groupstudy.com
> > > > >
> > > > > Hi
> > > > >
> > > > > When we summarize with EIGRP we will have the route of summary to
> NULL0
> > > > > installed in the table. Sometimes this create a problem when we
> have
> > > for
> > > > > example a default route in the routing table we need to utilize.
> > > > >
> > > > > My question any body knows how to disable installing the NULL0
> route in
> > > > case
> > > > > of EIGRP?
> > > > >
> > > > > Thanks,
> > > > > M Genidy
> > > > >
> > > > >
> > > > > Blogs and organic groups at http://www.ccie.net
> > > > >
> > > > >
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> > >
> > > --
> > > Narbik Kocharians
> > > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > > www.MicronicsTraining.com <http://www.micronicstraining.com/> <
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> http://www.net-workbooks.com/>
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
www.Net-Workbooks.com
Sr. Technical Instructor

Blogs and organic groups at http://www.ccie.net

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