摘要
利用packettracer模拟器模拟校园网内局域网的建设，而且配置了校园网的常用功能，如三层交换机VLAN划分、交换机IP地址设置及远程登录功能、Web和DNS服务器功能的实现．
The essay is supposed to use simulator ＂packet tracer＂ to simulate the construction of local area network of the compus network which is configured by some common functions used in the compus network, such as the division of the three-layer switch ＂VLAN, the setting of the IP address, the implementation of the function of the remote login and Web and DNS server.
