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nixos/modules
beatzaplentyandClaude Sonnet 4.6 cda2132d6a
Check NixOS configurations / eval-hosts (pull_request) Successful in 10m31s
fix(tailscale-router): masquerade LAN traffic into Tailscale
Without SNAT on tailscale0, Tailscale drops forwarded packets from LAN
source IPs (192.168.2.x) because they are not recognised Tailscale
addresses.  With networking.nat.externalInterface = "tailscale0", all
traffic leaving through the Tailscale tunnel is masqueraded to the
router's own Tailscale IP (100.x.x.x), making it indistinguishable from
locally-originated traffic.  Conntrack handles the return path.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-07-26 09:45:07 +10:00
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