OSPF排错思路：1.检查设备的IP地址：是否互通2.检查设备是否能发送ospf报文：该网段是否通过network宣告进区域3.检查设备是否能接收ospf报文4.检查设备之间ospf报文的关键参数：router-id：不能相同区域号：必须相同特殊标记：必须相同【stub、totallystub、nssa、totallynssa】认证：必须相同【链路认证、区域认证】

@PC1设置为DHCP客户端@设置DHCP服务器undoterminalmonitorsystem-viewsysnameDHCPdhcpenableippoolVLAN10network192.168.10.0mask24gateway-list192.168.10.254dns-list8.8.8.8quitippoolVLAN20network192.168.20.0mask24gateway-list192.168.20.254dns-list8.8.8.8quitippoolVLAN30network192.168.30.0mask24gateway-list192.168.30.254dns-list8.8.8.8quitippoolVLAN40network192.168.40.0mask24gateway-list192.168.40.254dns-list8.8.8.8quitinterfacegi0/0/0ipaddress192.168.66.124dhcpselectglobalquit-------------------------------------------------------------@配置DHCP中继SW6：undoterminalmonitorsystem-viewsysnameSW6vlanbatch1020304066dhcpenableinterfacevlanif10ipaddress192.168.10.25424dhcpselectrelaydhcprelayserver-ip192.168.66.1quitinterfacevlanif20ipaddress192.168.20.25424dhcpselectrelaydhcprelayserver-ip192.168.66.1quitinterfacevlanif30ipaddress192.168.30.25424dhcpselectrelaydhcprelayserver-ip192.168.66.1quitinterfacevlanif40ipaddress192.168.40.25424dhcpselectrelaydhcprelayserver-ip192.168.66.1quit---------------------------------------------------@配置DHCP客户端和DHCP中继之间的交换网络，即确保所有交换机的VLAN/trunk/access配置正确即可。SW1:
undoterminalmonitorsystem-viewsysnameSW1vlanbatch1020304066interfacegi0/0/12portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/1portlink-typeaccessportdefaultvlan10quitinterfacegi0/0/2portlink-typeaccessportdefaultvlan20quitSW2:
undoterminalmonitorsystem-viewsysnameSW2vlanbatch1020304066interfacegi0/0/12portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/3portlink-typeaccessportdefaultvlan10quitinterfacegi0/0/4portlink-typeaccessportdefaultvlan30quitSW3:
undoterminalmonitorsystem-viewsysnameSW3vlanbatch1020304066interfacegi0/0/12portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/5portlink-typeaccessportdefaultvlan20quitinterfacegi0/0/6portlink-typeaccessportdefaultvlan40quitSW4:
undoterminalmonitorsystem-viewsysnameSW4vlanbatch1020304066interfacegi0/0/12portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/7portlink-typeaccessportdefaultvlan40quitinterfacegi0/0/8portlink-typeaccessportdefaultvlan30quitSW10:
undoterminalmonitorsystem-viewsysnameSW10vlanbatch1020304066interfacegi0/0/24portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/23portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/6portlink-typeaccessportdefaultvlan66quitSW6:
port-groupgroup-membergi0/0/1togi0/0/4gi0/0/24gi0/0/23portlink-typetrunkporttrunkallow-passvlanallquit-------------------------------------------------------------------@配置DHCP服务器和DHCP中继之间的路由网络互通SW6:
vlan66quitinterfacevlanif66ipaddress192.168.66.25424quitDHCP:
iproute-static0.0.0.00192.168.66.254

@在所有的交换机上，添加新的VLAN156@添加新的SW7，与SW5/SW6/R1之间互联SW7:
undoterminalmonitorsystem-viewsysnameSW7vlanbatch102030406688156interfacegi0/0/15portlink-typetrunkporttrunkallow-passvlanallquitinterfacegi0/0/16porttrunkallow-passvlanallquitinterfacegi0/0/1portlink-typeaccessportdefaultvlan156quitSW5：vlan156interfacegi0/0/15portlink-typetrunkporttrunkallow-passvlanallquitinterfacevlanif156ipaddress192.168.156.524quitSW6：vlan156interfacegi0/0/16portlink-typetrunkporttrunkallow-passvlanallquitinterfacevlanif156ipaddress192.168.156.624quitR1:
undoterminalmonitorsystem-viewsysnameR1interfacegi0/0/0ipaddress192.168.156.124quit@配置R1/SW5/SW6的OSPFR1:
ospf1router-id1.1.1.1area0network192.168.156.00.0.0.255quitSW5:
ospf1router-id5.5.5.5area0network192.168.156.00.0.0.255quitarea10network192.168.10.00.0.0.255quitarea20network192.168.20.00.0.0.255quitarea30network192.168.30.00.0.0.255quitarea40network192.168.40.00.0.0.255quitarea88network192.168.88.00.0.0.255quitquitSW6:
ospf1router-id6.6.6.6area0network192.168.156.00.0.0.255quitarea10network192.168.10.00.0.0.255quitarea20network192.168.20.00.0.0.255quitarea30network192.168.30.00.0.0.255quitarea40network192.168.40.00.0.0.255quitquit

@配置web服务器服务器配置->httpserver->指定文件目录->指定启动端口->启动@配置边界设备R1R1：interfacegi0/0/1ipaddress100.1.1.124quitiproute-static0.0.0.00100.1.1.3ospf1default-route-advertise->通过OSPF协议产生默认路由quitquit**acl2000rule10denysource192.168.40.00.0.0.255rule20permitsourceanyquitinterfacegi0/0/1natoutbound2000quit**------------------------------------------------------------**@配置NATServer：R1:
interfacegi0/0/1natserverprotocoltcpglobal100.1.1.1080inside192.168. 88.180**------------------------------------------------------------@模拟外部运营商R3:
undoterminalmonitorsystem-viewsysnameDianXininterfacegi0/0/1ipaddress100.1.1.324quitinterfacegi0/0/0ipaddress200.1.1.25424quitClient1:
200.1.1.1255.255.255.0200.1.1.254--------------------------------------------------------------------------**@测试client1->httpclient->输入公网IP地址: 100.1.1.10，正常应该：获得网页信息。**

@配置SW8与SW5/6/7/R1之间的链路互联R1:
interfacegi0/0/2ipaddress192.168.165.124quitospf1area0network192.168.165.00.0.0.255quitquitSW8:
undoterminalmonitorsystem-viewsysnameSW8vlanbatch102030406688165156interfacegi0/0/2->连接R1的Gi0/0/2portlinkaccessportdefaultvlan165quitinterfacegi0/0/13->连接SW5的Gi0/0/13portlinktrunkporttrunkallow-passvlanallquitinterfacegi0/0/14->连接SW6的Gi0/0/14portlinktrunkporttrunkallow-passvlanallquitSW5：interfacegi0/0/13portlinktrunkporttrunkallow-passvlanallquitSW6:
interfacegi0/0/14portlinktrunkporttrunkallow-passvlanallquitsw7和SW8之间，通过Gi0/0/6-gi0/0/8进行链路捆绑：SW7/SW8:
interfaceeth-trunk1modelacptrunkportgi0/0/6trunkportgi0/0/7trunkportgi0/0/8portlink-typetrunkporttrunkallow-passvlanallquitSW5：interfacevlanif165ipaddress192.168.165.524quitospf1area0network192.168.165.00.0.0.255quitSW6：interfacevlanif165ipaddress192.168.165.624quitospf1area0network192.168.165.00.0.0.255quit此时，内网访问外网，是可以成功的！