The security technology of IPv6. Although IPv4 network security is a common problem, it is also a problem to be asked. Now let's talk about the IPv6 Security Gateway information. Now let's take a look at the specific content.
IPv6 provides many transition technologies to achieve this gradual process. These transition technologies mainly focus on solving two types of problems: IPv6 isolated island communication technology-to achieve interconnection between IPv6 networks and IPv6 networks; IPv6 and IPv4 interconnection technology-to achieve mutual resource access between two different networks. Therefore, we propose to develop an IPv4/IPv6 gateway, the Protocol address translation mechanism is used to solve the interconnection problem between IPv4 and IPv6 and achieve smooth transition from IPv4 to IPv6. This device can be applied to man, campus network, enterprise network, and other specialized networks, implement secure access to existing IPv6/IPv4 resources by subnets at all levels. Figure 1-1 is a typical application scenario of IPv4/IPv6 gateway. Figure 1-2 shows the connection situation of IPv4/IPv6 gateway networking 。
Figure 1-1 Typical application scenarios of IPv4/IPv6 Security Gateway
Figure 1-2 IPv4/IPv6 Security Gateway networking
Principles of IPv4/IPv6 Security Gateway
IPv4/IPv6 Security Gateway consists of four parts: mechanical structure, router appliances, power supply, and ventilation and cooling system, the packing box can be purchased or customized according to the mechanical size. The distribution frame adopts a standard distribution frame of 19 inch chassis. The power supply and power supply manufacturers negotiate with each other for customization. The ventilation and cooling system consists of two groups of fans, responsible for the heat dissipation of gateway host frames and power supplies. The main control board, switching board, and power supply redundancy modules will be used to implement modular structure design, provides SMOOTH and upgradeable capabilities. The architecture of IPv4/IPv6 Security Gateway is 1-3 。
Figure 1-3 architecture of IPv4/IPv6 Security Gateway