! WLAN Repeater – Wie baue ich mir meinen eigenen WLAN Repeater mit dem Raspberry Pi? deutsch
ohne zusätzlichen WLAN USB-Adapter
https://lookslikematrix.de/raspberry-pi/2019/07/15/wlan-repeater.html

Access point as WiFi router/repeater, optional with bridge
engl.: Base von lookslikematrix + Erklärung
https://raspberrypi.stackexchange.com/questions/89803/access-point-as-wifi-router-repeater-optional-with-bridge

Raspberry Pi WiFi to Ethernet Bridge for a server?
https://raspberrypi.stackexchange.com/questions/81486/raspberry-pi-wifi-to-ethernet-bridge-for-a-server/81518#81518

Workaround for a wifi bridge on a Raspberry Pi with proxy arp
https://raspberrypi.stackexchange.com/questions/88954/workaround-for-a-wifi-bridge-on-a-raspberry-pi-with-proxy-arp/88955#88955