Redirecting traffic from a interface to antoher

[Fabiano Bonin <fabiano@personalsoft.com.br>]

I don't know if this is the right place to ask this. If it's not, please 
point me the right place.

I have a sshd daemon running on a server (called SERVER) in my network 
(called INSIDENET).
In another network (called OUTSIDENET) , i have a client which connects 
to SERVER via ssh protocol, oppening a port (5050) on SERVER that 
redirects to some host on OUTSIDENET network, all via SSH protocol.
This way, if a connect to SERVER, port 5050, i will be automatically 
redirected to an specified host in OUTSIDENET.

This is the output of 'netstat -n -a -p | grep 5050', typed in SERVER:
tcp        0      0 127.0.0.1:5050          0.0.0.0:*               
LISTEN      22522/1

Well, ssh protocol open the port 5050 just on the local interface, so i 
can't connect from a host of INSIDENET to this port on i.e. ETH0.

I'd like to know if there is a way to accept connection in the same port 
but in anoter interface (i.e. ETH0) and redirect this traffic to the 
local interface (127.0.0.1)

Thanks.