> ping, traceroute, mtr etc don't work. Neither does ssh tunneling. No ssh server.

These things work, as long as you are not under a firewall. The problem is that currently it doesn't expose anything to whitelist if you do use a firewall, but hopefully they'll sort this out eventually.

Most of these problems have been fixed as of the January Creators Update for Windows 10.

SSH server is still iffy, because Windows 10 comes with an SSH server (not OpenSSH), which you'll have to disable. It was very weird to try to SSH into WSL and get a cmd.exe prompt.

Also, once you install opensshd with apt, the server is only active while its terminal window is open (since closing the terminal window kills the WSL init process).

Thanks... I had heard improvements were on the way, thought it was next release and not crestors.

Good tip on disabling Windows own ssh server too, sounds like I need to revisit this stuff see can I get it working again!