Denton Gentry

In https://login.tailscale.com/admin/machines to the far right is a menu which can be pulled up by clicking on the three dots. One of the selections is Review Route Settings. Could you...

I don't immediately see what is going wrong with the OpenVZ server. If you can, what would be most helpful: - have the LineageOS device use the OpenVZ server as...

For the OpenVZ system which is not working: right before the bugreport we see it repeatedly trying to establish a direct tunnel to the LineageOS, but never succeeding. We also...

Linux 3.10 should work. @xindirama Are you comfortable running tcpdump on the OpenVZ instance to try to diagnose `IPv4 packet with disallowed source address from X` ? You would need...

@tshpr set up an instance for us to use, now running `Linux tailscale 3.10.0-1127.18.2.vz7.163.46 #1 SMP Fri Nov 20 21:47:55 MSK 2020 x86_64 GNU/Linux` with Debian. @xindirama your instance has...

Great! I enabled exit node on the instance and am able to use it. whatismyipaddress.com shows my IPv4 address as that of the OpenVZ instance, in the Dallas area, but...

One thing of note is that we're having trouble parsing /proc/net/route: ``` Jul 25 15:23:40 tailscale tailscaled[320]: netcheck: probePortMapServices: failed to look up gateway address Jul 25 15:24:03 tailscale tailscaled[320]:...

That activity sounds like MagicSock probing for a connection. It will try all IP addresses, and fall back to the DERP relay if necessary.

`Jul 25 15:23:40 tailscale tailscaled[320]: netcheck: probePortMapServices: failed to look up gateway address` is from https://github.com/tailscale/tailscale/blob/33770895831d5b9b7cff0345b6769dc9b4da993b/net/interfaces/interfaces_linux.go#L39 It is looking for a typical residential IP setup, with a default route pointing...

Following up about likelyHomeRouterIPLinux and `probePortMapServices: failed to look up gateway address`: that code is looking for a place to send NAT-PMP and UPnP requests to, which residential gateways often...