From: Winston V. Shaw (wvshaw@bellsouth.net)
Date: Fri Feb 13 2004 - 00:25:52 GMT-3
In that case many of the area nssa commands can be used. It depends on what you want to achieve.
area x nssa
are x no-summary on ABR
area x nssa no-redistribute on ASBR/ABR
summary address x.x.x.x not-advertise on ASBR/ABR
area x nssa default-information-originate on ASBR or ABR
ASBR only generates default if it already has one, ABR generates a default whether it has a default or not.
WVShaw
CCIE#7991
>
> From: "Paul Chen" <cpjchen@starhub.net.sg>
> Date: 2004/02/12 Thu PM 10:09:46 EST
> To: "'Winston V.Shaw'" <wvshaw@bellsouth.net>,
> "'Bill Lijewski'" <bill@eccie.com>, <ccielab@groupstudy.com>
> Subject: RE: RE: NSSA -typo error
>
> Sorry, it was a typo mistake on my part :
>
> Rx is a ASBR and the cat3550 is both a ABR and ASBR
>
> -----Original Message-----
> From: Winston V.Shaw [mailto:wvshaw@bellsouth.net]
> Sent: Friday, February 13, 2004 11:03 AM
> To: Paul Chen; 'Bill Lijewski'; ccielab@groupstudy.com
> Subject: Re: RE: NSSA [bcc][faked-from]
>
>
> Rx cannot be an ABR if you have "other routing protocols" attached to it. If
> you take away the "other routing protoscols" then you can configure it with
> area x nssa and put the area x nssa default-information-originate on the
> cat3550 if it is connected to other protocols. And so on, and so on..... I
> think NSSA was created to allow redistribution into a so-called "stub" area
> and the ospf domain and still keep the database as small as possible.
>
> WVShaw
> CCIE#7991
> >
> > From: "Paul Chen" <cpjchen@starhub.net.sg>
> > Date: 2004/02/12 Thu PM 09:29:08 EST
> > To: "'Bill Lijewski'" <bill@eccie.com>, <ccielab@groupstudy.com>
> > Subject: RE: NSSA [bcc][faked-from]
> >
> > What about the case that the cat3550 is a ABR and ASBR , Rx is a ABR ?
> >
> > This is what I am seeing in my setup.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of Bill Lijewski
> > Sent: Friday, February 13, 2004 9:53 AM
> > To: 'Paul Chen'; ccielab@groupstudy.com
> > Subject: RE: NSSA [bcc][faked-from]
> >
> >
> > Just like the 'no-summary' command for a Totally Stubby area or a
> > Totally NSSA area, the 'default-information-originate' command should
> > only go on the ABR.
> >
> > - Bill Lijewski
> > CCIE#8642
> > Network Learning Inc
> > 5 Day R&S CCIE Bootcamp Instructor
> > bill@eccie.com
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of Paul Chen
> > Sent: Friday, February 13, 2004 12:14 AM
> > To: ccielab@groupstudy.com
> > Subject: NSSA [bcc][faked-from]
> > Importance: Low
> >
> > Hi,
> >
> > If it says Rx must have a default route for a NSSA area :
> >
> >
> > cat3550------ a ospf network
> > |
> > |
> > Rx
> > |
> > Other routing protols
> >
> >
> > Do I configure area x nssa default-information originate on both sides
> > or just on Rx ?
> >
> > I did it on both the cat 3550 and Rx . Rx will still have a default
> > route pointing to the Cat3550.
> >
> > Does it matter which side to configure the nssa default-info-originate
> > on ?
> >
> > Any advice appreciated.
> >
> > Paul
> >
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