Abstract:

To address the VPN (Virtual Private Network) applications in mobile multimedia metropolitan area network security issues, a VPN link establishment and certification method is proposed. The temporary IP address si used in the method to achieve anonymous communication, which effectively hides the user's private information to avoid information leaks to other dedicated local area network, the VPN network model to further enhance security. Meanwhile, in a single-key encryption system, encryption, encryption of data processing package, to ensure that the user data during transmission confidentiality and integrity.

Key words: field network, multimedia, authentication, virtual private network(VPN)