Extremely slow SFTP, but fast SSH?

[Robert Spanjaard]

When logging in to my desktop with SFTP, the connection is limited to 
around 1 (yes, one) kilobyte per second. It can take over a minute to 
respond to "ls" in my home folder.
It seems to be a routing problem. When I'm at the desktop, logging in to 
127.0.0.1 or the local IP-address (192.0.x.x) results in a fast 
connection. But when I log in to my external IP address (84.106.195.207 
at the moment), the connection is as slow as mentioned above.
The strange thing is, that when I log in using ssh or ssh -X, the 
connection does work at full speed. So that implies that there's nothing 
wrong with the routing after all. Unless there's a difference between the 
two that I'm not aware of.

Can anyone help me out?



-- 
Regards, Robert                                      http://www.arumes.com