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Please assist me in pinpointing the precise reason for the failure to identify all ABR (Area Border Router) information for area 220.127.116.11 in the attached multi-area OSPF scenario. In the database of Router 5 (R5), only one ABR (itself) is listed for area 18.104.22.168. However, upon inspection of the OSPF database on all other routers, I can observe that four ABRs are listed. I have provided the router configuration for clarity, and please let me know if additional information from the router configuration is required.
In your diagram you actually have five different «areas 6», which is not expected to work (you are expected to have five different identifiers for the five current «areas 6»).