OSPF duplicate area

Unanswered Question
Mar 31st, 2008


I have to join two lan. There's some duplicated ospf area number. Is there a problem in having two area with the same number ?

Did some test in my lab and everything looks ok in the routing table.

I have this problem too.
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Richard Burts Mon, 03/31/2008 - 08:37


The time that it creates a problem when two different (not connected) areas have the same area number is when they are the area 0 backbone. Other than the backbone area 0 it does not create problems if 2 OSPF areas have the same area number. What matters is which prefixes are being advertised and what is the Area Border Router that is advertising them.




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