OSPF only one area and this is not area 0

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Nov 10th, 2008
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Is there a problem if I have only one OSPF-area and this area is not area 0? So I have only area 100 but not connected to an area 0?


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jaleelahmed.sd Mon, 11/10/2008 - 03:45
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I believe, there won't be any problem until & unless you don't have any other area set up in future. If you have any other area need to setup, then certainly you need to set up area 0 and then you must set up to join all other area to this area 0.

If this is wrong, pls reply.


Jaleel Ahmed

Richard Burts Mon, 11/10/2008 - 07:52
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You are quite correct. As long as there is only a single OSPF area then it can be given any valid area ID. As soon as 2 OSPF areas need to communicate with each other then one of them must be area 0.



mig Tue, 11/11/2008 - 00:06
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Thx for your answer.

I have to change the area number from 0 to 100 because my customer has area 0 already in his part of network. Maybe in the future this 2 areas will bei communicate but only maybe in future.


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