[c-nsp] SSH from router to linux

[Roy]

I am trying to ssh from a 2811 to linux box.  I telnet to the Cisco and
issue

ssh -l root xx.xx.xx.xx

and I get the password prompt.  I enter that and then logon goes through
and I get the shell prompt.  The problem is that nothing I type seems to
get through to linux. 

Is there some magic I am missing?