>> Authentication is pointless without a means of ensuring the integrity of
>> the channel

>Correct.

>> and encryption gives you that as a side effect.

>False.  

My bad - I was trying to get that out before rushing off to look
after the kids, I should have been more explicit in that SSL (which 
is what my stelnet uses)  and to a lesser extent SSH provide said integrity 
checks.

Thanks for clarifying.
--sjg