Go CCIE Go!! - A Cisco Certified Internetwork Expert

Hi ,
Normally Default route should be sent by ABR but I think it was mentioned that the default route has to be sent from R1 as part of the Task requirement, technically we should be able to send a default route from any router why only the ABR, right ?
Can someone explain it pls.
Thanks
Shanky

On 7/31/06, Scott Morris wrote: > > R1 is not the ABR. R3 is the ABR and therefore the one who should inject > the 0/0 route. > > HTH, > > > Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE > #153, CISSP, et al. > CCSI/JNCI-M/JNCI-J > IPExpert VP - Curriculum Development > IPExpert Sr. Technical Instructor > smorris@ipexpert.com > http://www.ipexpert.com > > > _____ > > From: CCIEin2006 [mailto:ciscocciein2006@gmail.com] > Sent: Monday, July 31, 2006 6:39 AM > To: swm@emanon.com > Cc: Cisco certification > Subject: Re: Tricky One - Can Backbone router learn default route from > NSSA? > > > Basically the setup looks like this: > > (R1)–Area100–(R3)–Area0 > | > Area100 > | > (R2) > > R1, R2, and R3 are connected to Area100 which is a NSSA. R3 is also > connected to Area0. > R1 is configured with Area 100 nssa default-information-originate. > > Both R2 and R3 see the 0.0.0.0 route in their OSPF database but only R2 > actually enters the route in its routing table. R3 is not entering the > route > in its routing table. > > Can you explain why that is? I figured it might have something to do with > R3 > being connected to Area0 but I’m not sure…. > > Thanks > > > On 7/30/06, Scott Morris wrote: > > NSSA doesn’t inject a default route automagically. You need to put it on > the command line: > > Area 100 nssa default-information-originate > > Every other stub area type does automagically give you 0/0, but nssa does > not. > > Is that the problem you were running into? > > > Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE > #153, CISSP, et al. > CCSI/JNCI-M/JNCI-J > IPExpert VP - Curriculum Development > IPExpert Sr. Technical Instructor > smorris@ipexpert.com > http://www.ipexpert.com > > > > —–Original Message—– > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > CCIEin2006 > Sent: Sunday, July 30, 2006 8:28 PM > To: Cisco certification > Subject: Tricky One - Can Backbone router learn default route from NSSA? > > I was doing one of the vendor labs and for some reason the backbone > routers > was not accepting a default route from its neighbor in a nssa. Is there a > rule against this? > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html