From: Scott Morris (swm@emanon.com)
Date: Mon Jul 31 2006 - 11:30:12 ART
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 <swm@emanon.com> 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?
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