I am not a DB expert but I think it is not necessary right now. It seems as if you want to add the Oracle client FloluxOraDev-bu.cap.local. This is possible in general. However, in the DB applications you are using the complete different hostname bus-nwnmc-01-bu.cap.local which is rejected. As a consequence the whole operation fails. It looks as if NW cannot resolve the name bus-nwnmc-01-bu.cap.local . Make sure that you use the correct name and that it can properly be resolved to an IP address.  
Hi Expert ..!   We are trying to configure the AIX DB in networker. Can you pls help me to understand this error.. All the host entry are added in the server and client but still the same error : not able to create the RAW INSTACE  [IMAGE]  
storing database application credentials in the lockbox operation