Works fine with CIFS access (Samba).
Did not work straight away when trying to mount as NFS filesystem, but this may be due to the fact that I had already declared a CIFS volume (I read somewhere that this may cause problems). I didn't try very hard to get NFS access, as the device only supports NFS 3.0 anyway, which only provides machine authentication. User authentication, as done under CIFS (and NFS 4.0) is preferable.