OSPF does not really have the concept of an AS number. It is more correct to call the collection of all routers running OSPF an 'OSPF routing domain'. That is the terminology used within the RFC describing OSPF, RFC2328.
That is the reason you do not have to configure an AS number when configuring OSPF.
Having said that, it is not atypical for OSPF to be run as the sole routing protocol with a BGP AS. In such a case, the boundaries of the BGP AS co-incide with the OSPF routing domain.
There is one little contradiction to the above, though. Routes injected OSPF from other routing processes/protocols are referred to as AS-external LSAs, which does give one the impression that the terms AS and 'routing domain' represent the same concept when using OSPF. However, that still does not mean that the concept of AS within OSPF requires an AS#; that is strictly a BGP feature.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.