I摘要：随着计算机网络技术的快速发展，以及各类网络应用的普及度随着社会的发展而不断增大，现已渗透到社会的各个领域。本文的主要研究目的就是设计一个稳定的、相对比较安全的、并且同时可以支撑必要的网络应用的中小型企业网络。本文研究了相关中小型企业网络相关的研究背景，为湖南某机械制造公司企制定了网络设计方案和实施方案，其中包括：网络拓扑结构的设计、IP 编址等方面、设备选型。该网络是一个能够包括 2000 左右的用户采用双核心双出口的中小型企业网络。利用 Cisco Packet Tracer 仿真软件进行仿真，其中利用到 OSPF、VRRP、NAT 地址转换等关键技术的配置，并从网络通信、服务器访问和关键技术上进行测试，测试表明本方案能够满足中小型企业网络的需求，在技术上是可行的。关键字：网络设计；设备配置；网络测试IIIAbstract:With the rapid development of computer network technology and network application, and the increasing popularity of various network applications, it has penetrated into various fields of society.The main purpose of this paper is to design a stable, relatively secure, and can support the necessary network applications of small and medium-sized enterprise networks.In this paper, the research background of network related to small and medium-sized enterprises is studied, and the design scheme and implementation scheme are established for the enterprise, including: network topology design / IP address design, integrated routing design and so on.This network is a small and medium-sized enterprise network which can include about 2000 users and uses the technology of firewall to build a security zone between the inner network of the external network to form a special network.Cisco Packet Tracer software is used to simulate, in which the configuration of key technologies such as OSPFN DHCP relay Nat address translation is used, and the network communication, server access and key technologies are tested.The test results sh...
