I'd be keen to know too, its pretty dumb running ssh on port 22 as it gets tons of scans from bots. Using a non-standard port drastically reduces this (in terms of port-scans, so network traffic, i.e. a good thing for PlusNet as then bandwidth isn't wasted, plus it keeps my logs smaller).
The Thomson router I have only seems to have "BlockAll", "Standard" or "Disabled" as options, and then the ability to "Assign a game or application to a local network device" which only has a list of "Services" which no doubt use the default ports for various things. Obviously at present I've fallen back to using port 22, but we really should have the ability to open up whatever port we want in our firewalls and not be restricted to a tiny subset that PlusNet deem we're allowed to open (or alternatively having to have everything open which is a dumb security risk).
It disappoints me that everyone is treated at the lowest common denominator, its fine that not everyone wants or needs to know about firewalls, port-forwarding and iptables and such like, but some of us do and we should be afforded the freedom to utilise them.
