[Nottingham] Dealing with a router that does not support Port Forwarding

[Jason Irwin]

On 07/05/15 10:58, Paul wrote:
> next locate your distributions ssh server config (Debian its calld
> sshd_config and is located in /etc/ssh)
> Now you need to open the file in your text editor (nano, vi, emacs) and
> find the line Port 22
> and add directly under it the line Port 27950
> save the file and restart the SSH server.
I've already done that to move SSH to a non-standard port, although I
did now know I could define multiple ports. Neat!

The problem is that even though I have told the the router to pass that
non-standard port through; it does not work.
Advanced port forwarding (e.g. port 12345 to foo:22) is not supported
either.

I need a way for the Pi itself to punch out through the firewall and
connect to another server or something, from which I can then access the
Pi as the router is totally useless.

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