The research about secure protocol of IPv6 discusses the IPv6s secure protocol in aspects of IPSec抯 secure systems, the working principles, the working patterns, the methods of solving the secure problem and the application of it in VPN. IPSecs AH and ESP protocols provide authentication and encoding for IP layers transmission. This character can solve the problem that todays secure system which can not protect the data in the IP layer but can protect the data in the application layer.
Now,under the extraordinary expanding circumstances of education scale in collgees,and universities,we should construct the secure system of teaching quality from the following four aspects,making sure the steady improvement of teaching quality:Acquiring a correct outlook on teaching quality,setting up the perfect system in teaching,setting up assessment system in teaching quality,enhancing the construction in teaching facilities.
This paper suggests that through enhancing the guide of industrial policy and regional policy, pushing the speed of urban and rural labour market merge together, strenghtioning the adjustment and control to the engagement and employment of enterprices, and perfecting social secure system, and as a result to proceed the arise of industrial structure and technical structure, and to narrow regional disparity.
The spread of the research result is to quicken the step of the social insurance providing for the aged of the rural society to that of the modern social secure system, and puts forwards the rural social economic steady development in the similar areas, which owns the comparative actual theories and practical meanings.
Different measures should be taken according to different type of unempolyment, such as keep higher economy increaing rate, adjust industry structure, speed up thedevelopment of tertiary industry, develop non state - ownd economy, perfect labour force market,establish and improve the secure system for unemployment.
At the same time, this paper puts forward strategic choices on five key points such as unionizing urban and rural tax system, supplying urban and rural public goods coordinately, establishing and perfecting rural social secure system, improving system of rural land and employment etc.