I want to know what are the advantages for using each type of dlna upnp over vpn network connections? and how to determine the best type for use in home network for smart devices like I-pad, personal computer and television?
DLNA is derived from UPnP, as an effort to normalize media interoperability. It does this partly by being more restrictive than UPnP and partly by adding features.
DLNA uses Universal Plug and Play (UPnP) for media management, discovery and control. UPnP defines the type of device that DLNA supports and the mechanisms for accessing media over a network.
The DLNA guidelines then apply a layer of restrictions over the types of media file format, encodings and resolutions that a device must support.
VPNs typically require remote access to be authenticated and make use of encryption techniques to prevent disclosure of private information. Tunnel endpoints must authenticate before secure VPN tunnels can be established.
