Reverse port forwarding (-R) seems not working

[Vincenzo Romano <Vincenzo.Romano@xxxxxxxxxxx>]

Hi all.
I need to create a number of different reverse port forwarding (RPF)
with the -R option.
On the remote system I have set up a number of different dummy local
interfaces (dummy0=127.0.1.1 to dummy9=127.0.1.10).
A single RPF should look like this:

ssh -N -n -R 127.0.1.1:139:somelocalhost:139 user@xxxxxxxxxxxxxx

(it's actually for SAMBA printers reachability).
What happens instead is that, upon ssh connection on the remotehost I
see a listening socket on the interface 127.0.0.1!
That's the lo (loopback) and not the dummy0.
In an attempt to troubleshoot this problem I've changed the sshd
configuration in order to have it listening on every single interface
(as poosed to the default "one catches them all" setup). No luck.

Now I see two options:
either I'm missing something important
or this is a bug.

I hope for the first option so I can hope in a simple solution.

Any hint on this?

--
Vincenzo Romano
NON QVIETIS MARIBVS NAVTA PERITVS