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Tune NIC offloads for Tailscale exit node

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randogoth 2026-02-07 20:03:10 +02:00
parent 8ca0aa2901
commit 036b5d85b8
1 changed files with 16 additions and 1 deletions
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17
modules/services/tailscale.nix
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@ -1,4 +1,4 @@
{ ... }:
{ pkgs, ... }:
{
services.tailscale.enable = true;
services.tailscale.port = 41641;
@ -8,4 +8,19 @@
"--advertise-exit-node"
"--hostname=bucur"
];
environment.systemPackages = [ pkgs.ethtool ];
systemd.services.tailscale-offload-tune = {
description = "Disable GRO forwarding for Tailscale exit node performance";
after = [ "network-online.target" ];
wants = [ "network-online.target" ];
serviceConfig = {
Type = "oneshot";
ExecStart = ''
/bin/sh -c '${pkgs.iproute2}/bin/ip -o route get 8.8.8.8 | ${pkgs.coreutils}/bin/cut -f 5 -d " " | xargs -r ${pkgs.ethtool}/bin/ethtool -K rx-udp-gro-forwarding on rx-gro-list off'
'';
};
wantedBy = [ "multi-user.target" ];
};
}