How do we know if Type- 5 AS belongs to Area 0 or Area 1
Your question is very valid. The explanation is simple - an LSA5 does not belong to any particular area because it describes an external network, i.e. a network that is outside your OSPF domain, not in any of its areas. Therefore it is not assigned to any particular area. It is domain-wide.
Of course you may be interested in which area is the ASBR located that imports this external route. There is a limited possibility for learning it. You need to have a look at the Advertising Router field in the corresponding LSA5 and search for it between LSA1 (if it is in one of your own areas), or between LSA4 if it is in a different area. However, if a LSA4 describes that ASBR, you cannot tell from your own link state database where the ASBR is located. You would need to go to the router that originated the LSA4 (that would obviously be an ABR) and look into its own database for corresponding LSA1 or LSA4, optionally proceeding even further in the same way.
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.