Hi all...
I might be able to shed a little light on this. I noticed that I can connect with TLS for login authentication, but the channels were unencrypted (like everyone else). After looking at the GPL files (at least those included with firmware 1.05), the PureFTPd version that DLink is using is version 1.0.21...
This is significant, as PureFTPd introduced TLS during connect (login) with version 1.0.16. Encryption over the data channel was only enabled with version PureFTPd version 1.0.22 (per the changelog on the PureFTPd site).
I don't have the GPL files for firmware 1.08 - but it seems like the PureFTPd version has not changed.
Bottom line - data is not going to be encrypted. Perhaps our wish list for 1.09 Beta can include a later version of PureFTPd to get that data encryption feature.
-DocD