I am trying to reach the time capsule on a remote network. After following the advice of another question I realised the router/network doesn't support NAT-PMP/UPnP and thus I get to configure the time capsule as available through icloud, but I'm never able to reach it outside of the network.
However, I am able to ssh into an old powerpc I have port mapped on the router to a static IP. Is there any way to tunnel the time capsule backup through ssh? I've also tried sshuttle which works perfectly to forward dns/http requests. But it doesn't seem to make time capsule backups available, since the finder doesn't show any shared devices on the network.
I would gladly try a solution like FreeLan but unfortunately their support goes back to 10.7 and the old PowerPC machine inside the remote network serving as entry only has 10.5.x.