Configuring a WiFi Access Point using Raspberry Pi..... How To with the new kernel

Question

The latest upgrade of Raspberry Pi OS Release date: October 10th 2023 Debian version: 12 (bookworm) breaks the solution I have used for creating an AP on a Raspberry Pi. It relies on configurations in /etc/dhcpcd.conf 
 The release notes tells the tale. 
 NetworkManager used instead of dhcpcd as networking interface; various changes made to networking plugin to support this 
 If anyone has any insight on configuring an AP on the new release I appreciate the insight. 
 I will continue looking to find a configuration that works.

colporteur · Answer

Talking to myself, not a good thing. 
 Here is what I have discovered so far. 
 A fresh install of Raspberry Pi OS Desktop bookworm followed by the string of commands, will create an AP that I can connect to and surf the internet. 
 sudo apt update sudo apt upgrade sudo nmcli con add type wifi ifname wlan0 mode ap con-name accesspoint ssid "hotspot" autoconnect true sudo nmcli con modify accesspoint 802-11-wireless.band bg ipv4.method shared ipv4.address 192.168.6.1/24 sudo nmcli con modify accesspoint ipv6.method disabled sudo nmcli con modify accesspoint wifi-sec.key-mgmt wpa-psk sudo nmcli con modify accesspoint wifi-sec.psk "hotspot1234" sudo nmcli con up accesspoint 
 I can't take credit for the answer, the bulk of the heavy lifting was provided through these articles. 
 www.baeldung.com/.../nmcli-wap-sharing-internet forums.raspberrypi.com/viewtopic.php 
 That being said I still have an unanswered question. The AP distributes IP Addresses to hosts that connect using addresses from the same IP Pool of it's own address. 
 How is the DHCP pool determined? That I don't have an answer for at the moment.