David Anderson 097602b3ca ipn/ipnlocal: warn more precisely about IP forwarding issues on linux.
If IP forwarding is disabled globally, but enabled per-interface on all interfaces,
don't complain. If only some interfaces have forwarding enabled, warn that some
subnet routing/exit node traffic may not work.

Fixes #1586

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-26 11:03:10 -08:00
..