nix-infra/config/hosts/mqtt/networking.nix

{ ... }:

{
  networking = {
    interfaces.net0 = {
      ipv4.addresses = [
        {
          address = "10.31.208.14";
          prefixLength = 23;
        }
      ];
    };
    defaultGateway = "10.31.208.1";
    nameservers = [ "10.31.210.1" ];
  };

  systemd.network.links."10-net0" = {
    matchConfig.MACAddress = "BC:24:11:48:85:73";
    linkConfig.Name = "net0";
  };
}