I have probably the simplest ssh/portforwarding question imaginable. I've searched around here and elsewhere, but I haven't managed to get this working. I've used networks and ssh for years, but never set one up before, so there is some basic understanding missing.
Anyhoo, what I want to do is simple. I have a WLAN at home with a Netcomm modem/router. I believe I have setup portforwarding of port 22 for a particular machine I have running at home (i.e. specifying the 192.168.1.X address for this machine). I did this via the GUI interface to the modem.
Now, I want to be able to SSH into this machine from anywhere else outside of my home WLAN (i.e. remotely).
I can successfully ping my fixed IP address, but attempting to ssh simply fails to connect. For what it's worth the machine is running Ubuntu. Sorry to ask such a basic question.