Whenever users access the organization from remote locations, it is essential that the usual requirements of secure connectivity be met but also the special demands of remote clients. User Virtual Private Networking (VPN) extends VPN functionality to remote users, enabling users to securely communicate sensitive information to networks and servers over the VPN tunnel, using both dial-up (including broadband connections), and LAN (and wireless LAN) connections. Users are managed either in the internal database of the secure gateway server or via an external RADIUS server.