30 lines
957 B
Nix
30 lines
957 B
Nix
{ pkgs, config, lib, ... }: {
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networking.firewall = {
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enable = true;
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# Open ports in the firewall.
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allowedTCPPorts = [ ];
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allowedUDPPorts = [ 51820 ];
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allowedTCPPortRanges = [{
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from = 1714;
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to = 1764;
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}];
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allowedUDPPortRanges = [{
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from = 1714;
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to = 1764;
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}];
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# if packets are still dropped, they will show up in dmesg
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logReversePathDrops = true;
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# wireguard trips rpfilter up https://nixos.wiki/wiki/WireGuard#Setting_up_WireGuard_with_NetworkManager
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extraCommands = ''
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ip46tables -t mangle -I nixos-fw-rpfilter -p udp -m udp --sport 51820 -j RETURN
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ip46tables -t mangle -I nixos-fw-rpfilter -p udp -m udp --dport 51820 -j RETURN
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'';
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extraStopCommands = ''
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ip46tables -t mangle -D nixos-fw-rpfilter -p udp -m udp --sport 51820 -j RETURN || true
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ip46tables -t mangle -D nixos-fw-rpfilter -p udp -m udp --dport 51820 -j RETURN || true
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'';
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};
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}
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