<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>I try to establish a reverse ssh tunnel. Until now with no success.<br><br>The
system i want to access is a Edimax BR6104KP with OpenWRT trunk and
dropbear and a Huawei E220 G3-modem. I have acess to the internet.<br><br>My homesystem is using a AVM Fritzbox 7270 which is also running dropbbear as server with "./dropbear -a -E"<br> From the BR6104KP i can establish a ssh-connection to the Fritzbox with "ssh -l root -R 7722:localhost:22 mydomain.org" <br>I have now access from the BR6104KP to the Fritzbox and can execute commands on the Fritzbox's commandline.<br><br>But
the purpose is to have a reverse tunnel from the Fritzbox at home to
the BR6104KP which will installed at a remote location. So i establish the connection with " ssh -l root -f -N -g -R 7722:localhost:80 mydomain.org", i get the password-request and the connection disappears in the background.<br></div><div>When i try now
to establish this reverse channel from the Fritzbox to the BR6104KP
with "./ssh -p 7722 localhost" i get the following :<br><br># ./ssh -p 7722 localhost<br>./ssh: Connection to root@localhost:7722 exited: Remote closed the connection<br>#<br><br>Any idea what is the problem ?<br>Is it possible to run such a reverse ssh tunnel with dropbear (version 2011.54) as client and server ?<br>Or do i need openssh on the server (Fritzbox) ?</div><div>Do i need an additional serverdemon who handles port 22 ? I have also tried to forward port 23 (telnetd is running on the BR6104KP) but with same result.<br></div><div>Is it possible to forward several ports (e.g. 80 and 22) ?<br><br>best regards<br><br>A. Zoeller</div><div><br></div></div></body></html>