Hi Amit, can you provide some more details of what you are planning to do...
If this is just a ip address change for the master server, then the only think I can think of is that your DNS shall be able to handle this change. Master server should be able to communicate with each and every media server and the clients
Do not make any changes in EMM through nbemmcmd. If the hostname resolution works fine, there shouldn't be any problems.
yes its going to be location change along with Ip address change, Server will be connect to same library and storage as storage and libraries will be moved along with , thr is not going to be hostname change , just want to know if ip change has any affect on netbackup catalog