A WAN can be set up with one 1 area (or in your case, 2 areas). there is no
requirement by OSPF that you use a certain number of areas. If you have
more than 1 area, 1 of those areas must 0 as 0 is the backbone across which
other areas communicate with each other.
If you are asking if all the routers running OSPF in area 1 must physically
connect to area 0, the answer is no. Only 1 router in area 1 must be
neighbors with a router in area 0: that is the only requirement.
Good doc here:
http://www.cisco.com/cpress/cc/td/cpress/design/ospf/on0407.htm
I won't mention virtual links except to say don't use them.
HTH,
Charles
""Mike Baker"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
> Can a WAN be setup with only two areas - 0 and 1, even if all of the area
1s are
> not physically connected?????
>
> Michael K. Baker
> Telecom Network Analyst
>
> ALLTEL Information Services
> 2000 Highland Road
> Twinsburg, Ohio 44087
> 330-963-1648
>
> www.alltel.com
> INIHGROBMALATNAWI
>
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