i have two computers one windows an one linux. on my linux run a ssh deamon. 

this computers are connected with a hub and then with the lan
interface in my sokris. the wan interface set up a pppoe dsl
connection to the isp.

when i use the windows computer with the internal ip so i can connect
with the linux ssh.

but when i use the external isp ip to connect my linux workstation i
get no connection. a ping works to my dynamic ip but not the ssh.
whats the problem. i have setup a rule and nat to my linux workstation
but i dont get a connection. what can i do?

about this way i woult check my ssh over the internet. 

any help?

greets

Sven