Hello,
You should look for the HP directory support tool, you can download it here http://h20566.www2.hpe.com/hpsc/swd/public/detail?sp4ts.oid=5194969&swItemId=MTX_a929473982c3438fbf79fdd19a&swEnvOid=4168
With this tool you can configure AD authentication, but one interesting option in this tool is to mass update ILO's.
Download your BIN files to update your ILO's place then on your server and start the tool. First you need to list thr ip or dns name of your ILO's or a whole subnet. Then enter credentials to be used to logon to your ILO's in the next screen you can flash your ILO's. Since there is no impact on flashing the ILO you can update all of them at once.
