Why do you need a public IP to do ssh?
jm
you don't, however, w/o a public IP, IPSec becomes difficult, sometimes
impossible, to deploy -- and there are lots of folks who have or might come
to have such applications, as the teething problems with IPSec gradually
settle out.
i just spent a week in IPSec/NAT hell working with a client who was stuck
with an Ameritech DSL line. i really don't feel much like listening to
songs about the joy of NAT right now (we got the application working, with
no thanks due Ameritech.)
richard