FTP Backup Question

[MoMan]

I've recently purchased a network HDD storage module from d-link (NAS-321) which I'd like to use to back up my website/forum. It runs a FTP server on my local network, but I'm also able to access this server via the internet using port forwarding.

Now my question is this: how would I go about sending files from my webserver (SSH) over to the FTP server on this storage module? I don't want to have to have anything go through my local PC, since that's a huge bottleneck when I'm anywhere outside of my 65MBit college connection.

Is there a SSH command to connect to an FTP server? If so, then I'd be able to copy files using the cp command, and I'd be golden. This would definitely speed things up, since my complete site backup takes about 10 gigs of space: the gzipped files/attachments are about 9Gb, while the forum database is 1Gb.

Thanks for any help!