The reason we recommend using IP address to create MySQL users is for security purpose. But for simplicity, you can just do the following.
Log on to your source MySQL instance using existing user account with super privilege, copy and paste the following statements to create MySQL user accounts that will be used by Delphix, which will have enough privilege to generate MySQL db backup.
You can replace 'delphix' with your preferred user name, and replace 'mysql_user_password' with your preferred password.
GRANT SELECT, RELOAD, REPLICATION SLAVE, REPLICATION CLIENT, SHOW VIEW, EVENT, TRIGGER ON *.* TO 'delphix'@'localhost' IDENTIFIED BY 'mysql_user_password';
GRANT SELECT, RELOAD, REPLICATION SLAVE, REPLICATION CLIENT, SHOW VIEW, EVENT, TRIGGER ON *.* TO 'delphix'@'%' IDENTIFIED BY 'mysql_user_password';
flush privileges;
Yes, the staging target IP address is the IP address for your staging host on which Delphix will set up replication.