BACKGROUND
A UNIX NAS operates behind a Unix Router. The router's SSH port is open to the WAN, however the SSH port of the NAS is LAN accessible only. One is able to SSH to the router from any WAN connections (i.e. Starbucks) from Unix command line (Bash).
To access the NAS, one must provide login through the router and then login to the NAS.
QUESTION
Is it possible to remotely retrieve (from NAS side of router) files from the NAS via:
- command-line (scp, rsync, etc)?
- application (FileZilla)?
Examples are preferred & appreciated.