Mobile Firewall

摘要

The main problems with using existing firewall approaches in wireless and mobile environments are these methods cannot prevent internal attacks and at the same time preserve wireless bandwidth, have little or no packet filtering capability for mobile users, and inconvenient for service providers and end users to change firewall policies dynamically. We propose mobile firewall architecture to solve these problems. The paper presents the design and implementation of the mobile firewall, and shows the packet-filtering performance results and the maintenance cost in the mobile firewall.