Then, the main parameters of the network are analyzed and calculated. Finally, the communication protocols of the network, dynamic address allocation scheme and transmission control protocol are proposed. 然后对网络的各主要性能参数进行了分析和计算,最后介绍了网络通信协议,即动态地址分配方案和传输控制协议。
The main content includes: design of network topological structure, routing strategy, standard of network interconnection, division of network address, network fundamental service, choice of devices, and connection of external network. 在广域网建设方面,制定了广域计算机网络的实施规范,具体内容包括:网络拓扑结构设计、路由策略选择、网络互联标准制定、网络地址划分、网络基本服务、设备选型以及与外部网络的连接。
IPSec has become a main tunneling technology in creating virtual private networks ( VPN). However, it is shown that widespread network address translation ( NAT) devices are becoming major barriers to the deployment of IPSec-based VPNs. IP安全协议(IPSec)业已成为当前构筑基于IP技术的虚拟专用网(VPN)的主流技术,然而已广泛使用的网络地址转换(NAT)技术正成为阻碍基于IPSec的VPN发展的主要障碍。
The discussion is focus on these main subsystems: Network Access Control Subsystem, NAT IP Address Convert Subsystem. 其中重点讨论了访问控制子系统、NAT地址转换子系统等。