Principle and realization of parallel dynamic working firewalls were given and single fault elimination method in network firewall were emphasized strongly. 重点阐述了多台防火墙动态并行工作的原理和实现及如何消除网络中防火墙的单点故障。
By analyzing network worm propagation in a single subnet and cross propagation between subnets, this model reduces the cross infection rate between subnets and suppresses network worm propagation through the firewall. 通过分析网络蠕虫在各子网内传播以及子网间交互传播,利用防火墙减小各子网间蠕虫的交互感染率,使网络蠕虫的传播得到抑制。