01-27-2013 09:40 AM - edited 03-04-2019 06:51 PM
I'd like to use OSPF NSSA in order to redistribute static routes into OSPF, but all I want from the upstream is the default route, like what I would get if I was using STUB. I tried connecting NSSA to STUB in this manner:
Upstream:
router ospf 100
area 200 stub no-summary
[networks deleted]
Downstream:
router ospf 100
redistribute static subnets
redistribute connected subnets
area 200 nssa
[networks deleted]
It didn't work. Do both sides of the link need to be the same? Ie: stub/stub, nssa/nssa?
01-27-2013 09:25 PM
Yes the routers must configure area 200 as the same kind of area.
HTH
Rick
Sent from Cisco Technical Support iPad App
01-28-2013 02:00 AM
Hello Pete,
in order to build a successful OSPF adjacency the routers must agree on area type.
The area type is mapped in flag bits that are present in OSPF hello packets so the mismatch is easily detected.
In your case you need to use area 200 nssa on both routers.
Hope to help
Giuseppe
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