(This paper summarizes network security issues, analyzes the technical properties of IPv6 and IPSec mechanism, and studies the impact of IPsec on existing network security systems, especially the new challenges brought by firewalls. The basic principle and implementation technology of firewall are studied, including the history, classification and function of firewall, and the system structure and working principle of traditional network firewall and distributed firewall are compared.
Research on distributed firewall technology under IPv6.nh
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