[Duplicity-talk] tunneling

[ST]

Hi,
I want to make a backup using duplicity (which uses paramiko) and upload
files to a remote host R2, the problem is, that I can access R2(sftp
access) only from R1(ssh access). How can I tunnel duplicity through R1
to R2? I defined (in .ssh/config) Host R2 and ProxyCommand ssh -p XXXX
-qW %h:%p address@hidden and I can actually do `sftp address@hidden but when I 
run
`duplicity Dir sftp://address@hidden/` there is a delay and I get
"BackendException: ssh connection to R2:22 failed: timed out". Is there
a way to tell paramiko to use my .ssh/config? Or is there a way to
tunnel through another host in paramiko?

My duplicity version 0.6.18, seems not to have --ssh-backend option, so
I cann't choose pexpect... or am I wrong?

Thank you.
Simone