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I wonder if it might be a same problem as with “regular” OSPF default routes: the OSPF router must have an internal OSPF route to the forwarding address. That means, if R3 has a “connected” route towards forwarding address of R1-originated default and R3 is configured with “network 0.0.0.0″ statement then R3 won’t pass default to own routing table. Need to see Your configs and “show ip ospf database nssa” printout from R3. HTH Cheers Alex
—– Original Message —– From: “CCIEin2006″ To: Cc: “Cisco certification” Sent: Monday, July 31, 2006 11:38 AM 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