feat(tailscale): enable UDP GRO forwarding on subnet router uplink #68

2026-07-25T23:14:29Z

beatzaplenty commented

2026-07-25 23:14:29 +00:00

Adds a oneshot systemd service that sets ethtool rx-udp-gro-forwarding on
and rx-gro-list off on the default-route interface at boot, silencing
Tailscale's warning about suboptimal UDP GRO forwarding on subnet routers.
Interface is discovered dynamically via ip route get so it works on all
platforms regardless of NIC naming.

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com

Adds a oneshot systemd service that sets ethtool rx-udp-gro-forwarding on and rx-gro-list off on the default-route interface at boot, silencing Tailscale's warning about suboptimal UDP GRO forwarding on subnet routers. Interface is discovered dynamically via `ip route get` so it works on all platforms regardless of NIC naming. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

beatzaplenty added 1 commit 2026-07-25 23:14:30 +00:00

feat(tailscale): enable UDP GRO forwarding on subnet router uplink

Check NixOS configurations / eval-hosts (pull_request) Successful in 10m42s

Details

4be064572d

Adds a oneshot systemd service that sets ethtool rx-udp-gro-forwarding on
and rx-gro-list off on the default-route interface at boot, silencing
Tailscale's warning about suboptimal UDP GRO forwarding on subnet routers.
Interface is discovered dynamically via `ip route get` so it works on all
platforms regardless of NIC naming.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

beatzaplenty merged commit 6c1cc821a0 into main

2026-07-25 23:14:34 +00:00

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Reference: beatzaplenty/nixos#68