How to disable IP settings randomization of wifi sharing?

I can not see a way to set up the network parameters if I start a wifi sharing in AP mode. The usual behavior of my phones is that they randomly allocate a /24 block somewhere below 192.168.0.0/16, and everything will be random there. They are also re-generated, if the wifi stops working on any reason. I want to change it. I want the good old times back as I just could determine the IP range, the IP of the AP in it and that worked well. It would be yet much better if I could even create a mac-ip mapping, like it is possible in any dhcp daemon on the Linuxes; but I think it will remain a dream today. Can I do it? I have here a rooted Android 11.