How to configure Gateway using Base OS image

I installed Lora-gateway-os-base
From https://artifacts.loraserver.io/downloads/lora-gatewayos/raspberrypi/raspberrypi3/2.0.0test4/

After switching on the raspberry pi I don’t see the device on my LAN.
How do I configure the network settings so that I can ssh into the Raspberry Pi and change the network server to which it needs to send the data.

Thanks

I’m using nmap to detect which IP has been assigned to the Pi, e.g.

sudo nmap -sP 10.42.0.1/24

See also: https://vitux.com/find-devices-connected-to-your-network-with-nmap/.