It is a requirement to have a working internet connection provided by a supported Networking Card or Chipset. We do not redistribute any files for the installation portion of OS X / macOS, and you will be using Base System / recoveryOS which uses an active internet connection to download the full installation from Apple directly, like a normal Mac machine would do.
If you already have a real Mac machine near you, and you make an offline installer, you can negate the requirement of a working NIC, but then how would you enjoy using OS X / macOS after? Even if you resolve the installation issue, you will need a form of networking in some capacity eventually.
You can continue by selecting the appropriate button below for your Type of NIC.