Design and Performance of Firewall System Based on Embedded Computing

Conventional firewall has failed to resist the attack from the inside network and distributed firewall excessively relies on the host operation system, therefore embedded firewall become the focus of the current network security research. The paper discusses the design and implementation of firewall system based on embedded computing. In addition, it presents architecture of embedded firewall, analyses the implementation mechanism of dynamic packet filter module and network address translation module in the embedded firewall system. Finally, it gives the performance testing results of the embedded firewall.