思科路由器如何配置NAT功能.docx

思科路由器如何配置NAT功能首先，小编必须要介绍下什么是NAT。NAT，英文全称为NetworkAddressTranslation，是指网络IP地址转换。NAT的出现是为了解决IP日益短缺的问题，将多个内部地址映射为少数几个甚至一个公网地址。这样，就可以让我们内部网中的计算机通过伪IP访问INTERNET的资源。如我们局域网中的192.168.1.1地址段属私网地址，就是通过NAT转换过来的。NAT分为静态地址转换、动态地址转换、复用动态地址转换。下面是小编将列出思科路由器NAT配置实例，希望对您有所帮助。Currentconfiguration:!version12.0servicetimestampsdebuguptimeservicetimestampsloguptimenoservicepassword-encryption!hostname2611!enablesecret5$JIeG$UZJNjKhcptJXHPc/BP5GG0enablepassword2323ipro!ipsubnet-zeronoipsource-routenoipfinger!!!interfaceEthernet0/0ipaddress192.168.10.254255.255.255.0secondaryipaddress218.27.84.249255.255.255.248noipdirected-broadcastipaccountingoutput-packetsnoipmroute-cachenocdpenable!interfaceSerial0/0ipunnumberedEthernet0/0noipdirected-broadcastipaccountingoutput-packetsipnatoutsidenoipmroute-cachenofair-queuenocdpenable!interfaceEthernet0/1ipaddress192.168.2.254255.255.255.0noipdirected-broadcastipnatinsidenoipmroute-cachenocdpenable!interfaceVirtual-TokenRing35noipaddressnoipdirected-broadcastnoipmroute-cacheshutdownring-speed16!routerripredistributeconnectednetwork192.168.2.0network192.168.10.0network218.27.84.0!ipdefault-gateway218.27.127.217ipnatpoolnat-pool218.27.84.252218.27.84.254netmask255.255.255.248ipnatinsidesourcelist1poolnat-pooloverloadipnatinsidesourcestatic192.168.2.254218.27.84.249ipclasslessiproute0.0.0.00.0.0.0Serial0/0iphttpserveriphttpport9091ipospfname-lookup!ipaccess-listextendedfilterinpermittcpanyhost218.27.84.249eqwwwreflecthttpfilteraccess-list1permit192.168.2.00.0.0.255nocdprun!linecon0transportinputnonelineaux0linevty04passwordroutrlogin!end按照步骤敲完这些代码，那么你应该就会了解到如何配置思科路由器NAT功能了。如果觉得不错请给小编一个赞吧。