毕业论文-企业网组网研究与设计.docVIP

摘 要 21世纪将是知识经济时代，以知识和信息的生产、传播和应用为基础的知识经济将占世界经济发展的主导地位。国家综合国力和国际竞争能力越来越取决于教育发展、科学技术和知识创新的水平，教育在经济和社会发展过程中将呈现越来越突出的重要作用。　　另一方面，随着现代科学技术的飞速发展，世界范围内的信息化浪潮势不可挡，迅速延伸到国防、科研、经济等各个领域，也不可避免地改变着传统的教育模式----信息和教育相结合毫无疑问地成为了当今世界教育改革和发展的有机组成部分，而当前蓬勃发展的计算机和网络为主导的现代信息技术是教育先导化必不可少的技术基础。　　目前，全国已掀起一股信息高速公路规划和建设的高潮，国际互联网（Internet）上相连的计算机已近达数亿万台，全球有数亿人在Internet上进行信息交换和各种业务处理。Internet上积累了大量信息资源，这些资源涉及人类面对和从事的各个领域、行业及社会公用服务信息。成为信息时代全球可共享的最大信息基地。 关键字：局域网、Internet、网络协议、服务器、防火墙 Abstract 21st century is the era of knowledge economy, knowledge and information to the production, dissemination and application of the knowledge-based economy based on world economic development will account for the dominant position. Comprehensive national strength and international competitiveness increasingly depends on the development of education, science and technology and the level of knowledge innovation, education in economic and social development process will appear more and more prominent an important role.  On the other hand, modern science and technology with the rapid development of the worlds information technology wave is unstoppable, rapidly extended to national defense, scientific research, economic and other fields, but also inevitably changing the traditional mode of education and information ---- There is no doubt the combination of education to become the world today education reform and development of the organic component of the current vigorous development of computer and network-oriented modern information technology is essential to the pilot of the technical basis.  At present, the country has set off an information highway planning and construction of the upsurge of the Internet (Internet) almost on the computer connected to several hundreds of millions of Taiwan, hundreds of millions of people around the world on the Internet for information exchange and various business processes. On the Internet has accumulated a wealth of information resources, those resources invo