RE: Simple OSPF Question CyscoExpert sample lab 1

From: Lysyuk Andrew (lysyuk@ics.ua)
Date: Sat Dec 28 2002 - 06:23:57 GMT-3


David,
When you define the area as a NSSA, not Stub, the default behaivior of
OSPF not to generate default route into this area.

Andrew.

Ok I understand the NSSA principal....... I am stuck on how to set up
the
ACL for the OSPF distribute list in serial 0 part.

Router ospf 1
distribute list 50 in Serial 0

Access-list 50 deny 0.0.0.0 0.0.0.0

That doesnt work, because it blocks all traffic. How do I block just
the
default route?

Heaven Help me attempt # 3 coming up Jan
15th............................

Thank You,

David

> "If you define area 12 as a stub, R1 should filter 0.0.0.0/0 with an
inbound
> distribute-list under OSPF. If area 12 is an NSSA, the NSSA ABR does
not
> originate a default route by default, so this is fine. Either answer
is an
> acceptable solution."
.
.



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