OSPF only one area and this is not area 0

[mig]

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?

Thx.

[jaleelahmed.sd]

Hi,

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.

Thnx,

Jaleel Ahmed

[Richard Burts]

Jaleel

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.

HTH

Rick

[mig]

Hallo!

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.