Pi SDR IQ/IQ Plus is free from any user IP addressing setup. It uses the DHCP protocol to get its address automatically without any user intervention. Usually, all modern home internet provider routers have already the DHCP server in order to provide this feature. In case where a dedicated ethernet cable connects the PC and the Pi SDR, as those in a network-free setup, Pi SDR IQ/IQ Plus is using the IPv4LL protocol as the PC/Windows does, to get an IP address.