CCNP-13OSPF试验9

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1、CCNP-13OSPF试验9试验拓扑：试验要求：R1R2R3全部起OSPF，并且按照拓扑划分区域，把AREA1设置成为NSSA区域。试验目的：掌握OSPFNSSA的配置方法，并且知道和理解NSSA的作用以及NSSA区域中路由器的LSA的类型。实验配置：R1：interfaceLoopback0 ipaddress1.1.1.1255.255.255.0 ipospfnetworkpoint-to-point!interfaceLoopback1 ipaddress172.17.1.1255.255.255.0 ipospfnetwor

2、kpoint-to-point!interfaceLoopback2 ipaddress172.17.2.1255.255.255.0 ipospfnetworkpoint-to-point!interfaceLoopback3 ipaddress100.100.100.100255.255.255.0!interfaceSerial1/0 ipaddress199.99.1.1255.255.255.0 serialrestart-delay0!routerospf100 router-id1.1.1.1 log-adjacency

3、-changes redistributeripsubnets network172.17.1.00.0.0.255area0 network172.17.2.00.0.0.255area0 network199.99.1.00.0.0.255area0!routerrip version2 network100.0.0.0 R2：interfaceLoopback0 ipaddress2.2.2.2255.255.255.0 ipospfnetworkpoint-to-point!interfaceSerial1/0 ipaddre

4、ss199.99.1.2255.255.255.0 serialrestart-delay0 clockrate64000!interfaceSerial1/1 ipaddress199.99.2.1255.255.255.0 serialrestart-delay0 clockrate64000!routerospf100 router-id2.2.2.2 log-adjacency-changes area1nssa network199.99.1.00.0.0.255area0 network199.99.2.00.0.0.25

5、5area1 R3：interfaceLoopback0 ipaddress3.3.3.3255.255.255.0 ipospfnetworkpoint-to-point!interfaceLoopback1 ipaddress172.16.1.1255.255.255.0!interfaceLoopback2 ipaddress172.16.2.1255.255.255.0!interfaceLoopback3 ipaddress172.16.3.1255.255.255.0!interfaceSerial1/0 ipaddres

6、s199.99.2.2255.255.255.0 serialrestart-delay0!routerospf100 router-id3.3.3.3 log-adjacency-changes area1nssa redistributeripsubnets network199.99.2.00.0.0.255area1!routerrip version2 network172.16.0.0以上为基本配置，注意用红颜色标记的部分。这样配置完成后就把AREA1配置成为了NSSA区域，NSSA区域具有STUB区域的特性，并且STUB

7、区域内部可以有ASBR，但是NSSA区域内可以有ASBR。下面在R2上查看一下路由表：R2#showiprouteCodes:C-connected,S-static,R-RIP,M-mobile,B-BGPD-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterareaN1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2E1-OSPFexternaltype1,E2-OSPFexternaltype2i-IS-IS,su-IS-ISsummary,L1-I

8、S-ISlevel-1,L2-IS-ISlevel-2ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticrouteo-ODR,P-periodicdownloade