You're looking to have the Device Name generated based on the initial IP address? Or do you want the Device Name changed every time an IP address changes? I'm not sure if I completely understand your use case given that the IP address can be revealed as its own column in your inventory. You can have the Device Name generated by IP address based on an Enrollment Rule if using Android+, which I assume you are given that the WT6000 is Android L AOSP only. 

Do you want the device name to be "statically" associated with the IP address of the device during device enrollment?    Or "dynamically" modified based on the latest IP address (last octet, e.g. xx if the IP address is 192.168.1.xx xx=0-254 for all devices belonging to the same subnet) whenever it is online?

Both can be doable, with some limitations, for Android+ devices.  But dynamic modification may not be a good idea due to the following reasons:

1.  There may be device name conflict because an IP address can be reassigned arbitrarily at different times to different devices (e.g. with DHCP) unless the network infrastructure include some policy to bind IP address to device h/w MAC address.  Although Mobicontrol allow two or more devices to have the same logical name, it can be very confusing for administrator to figure out which device he is actually monitoring/controlling if the device names keep on changing.

2. It can be difficult to figure out from Mobicontrol generated reports ,or from various server logs  what entries are associated with the  device of interest if its name keep on changing from time to time.

Do you only want the device end-user to be able to see the latest device IP address on his/her device screen?   Are the device on more than 1 subnet?  What is the maximum delay can you allow between automatic device name renaming and IP address change?  Please provide more details on your use case before any solution(s) can be provided.

So, Thanks for your answer,

when I wish to allot a name to my machine(WT60000) in SOTI, ex: SAU 004, I would have wished to obtain automatically, for example, address IP fixes 10.10.40.004.

I grant it to you, it is a nonordinary request.
Under Windows, batch/VB can solve this kind of Pb, but at this stage, I remain in front of a wall.

Best regards

As far as I know, it is possible to use MobiControl script to  rename a device based on the IP address it is using in standard Android. 

However, it seems that you want to name a device at will and configure it to use a corresponding IP address related to the device name.  I'm not sure fixing your device IP is doable with Zebra mxconfig or mxmlconfig scripts on your Zebra WT6000.  Maybe Matt Dermody  can help you out with this.