关键词: 用户数据报协议 传输控制协议 穿透 网络转接器

Abstract:

In the current information sharing systems, there is a problem of firewall penetration. As for this problem and based on the exiting TCP and UDP penetration schemes,we analyze all kinds of possible transmission scenarios in practical applications,and then present a technique of UDP coordinating with TCP to penetrate firewalls. Finally, we present the realization of this methodta network connector XIPSwitch which is independent of applications, the re alization method can further solve the firewall penetration problem of the internal terminal in the existing information sharing systems.

Key words: user packet protocol, transmission control protocol, penetration, network connector