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Adding defaultGatewayWindowSize
This allows setting the max tcp window size for the route of the default gateway (usually the internet access). It works only for non-DHCP configurations by now.
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@ -5,6 +5,10 @@ with pkgs.lib;
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let
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cfg = config.networking;
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windowSize = if cfg.defaultGatewayWindowSize != "" then
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"window ${cfg.defaultGatewayWindowSize}" else "";
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interfaces = attrValues cfg.interfaces;
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hasVirtuals = any (i: i.virtual) interfaces;
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@ -135,6 +139,15 @@ in
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'';
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};
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networking.defaultGatewayWindowSize = mkOption {
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default = "";
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example = "524288";
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description = ''
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The window size of the default gateway. It limits maximal data bursts that TCP peers
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are allowed to send to us.
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'';
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};
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networking.nameservers = mkOption {
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default = [];
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example = ["130.161.158.4" "130.161.33.17"];
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@ -282,7 +295,7 @@ in
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# Set the default gateway.
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${optionalString (cfg.defaultGateway != "") ''
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# FIXME: get rid of "|| true" (necessary to make it idempotent).
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ip route add default via "${cfg.defaultGateway}" || true
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ip route add default via "${cfg.defaultGateway}" ${windowSize} || true
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''}
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# Turn on forwarding if any interface has enabled proxy_arp.
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