vcp-bula-nixfiles/hosts/pre-router/router.nix

{ config, pkgs, ...}:

{

  environment.systemPackages = with pkgs; [
    ethtool             # manage NIC settings (offload, NIC feeatures, ...)
    conntrack-tools     # view network connection states
  ];

  networking.firewall.interfaces.ens19.allowedUDPPorts = [ 67 53 ];
  networking = {
    nameservers = [ "141.24.40.3" "141.24.40.4" ];
    nat = {
      enable = true;
      extraCommands = "iptables -A INPUT -p icmp -j ACCEPT";
      externalInterface = "ens18";
      internalInterfaces = [ "ens19" ];
    };
    interfaces = {
      ens19.useDHCP = false;
      ens18.useDHCP = true;
      # Handle the VLANs
      ens19 = {
        ipv4.addresses = [
          { address = "10.42.10.1"; prefixLength = 24; }
          { address = "10.42.10.25"; prefixLength = 24; }
        ];
      };
    };
  };
}