拓扑图如上:
R1配置：
R1#SH RUN
Building configuration...Current configuration : 1099 bytes
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup !! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ip router isis ! interface Serial0/0 ip address 200.1.1.1 255.255.255.0 ip router isis encapsulation frame-relay serial restart-delay 0 clock rate 64000 frame-relay map ip 200.1.1.3 103 broadcast //配置CLNS映射 frame-relay map ip 200.1.1.4 104 broadcast frame-relay map clns 103 broadcast frame-relay map clns 104 broadcast! interface Serial0/1 no ip address shutdown serial restart-delay 0 ! interface Serial0/2 no ip address shutdown serial restart-delay 0 ! interface Serial0/3 no ip address shutdown serial restart-delay 0 ! router isis net 49.0001.1111.1111.1111.00 ! no ip http server no ip http secure-server ! ! ! ! ! ! control-plane ! !! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 ! ! endR3的配置
R3#show run
Building configuration...Current configuration : 1036 bytes
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup! ! interface Loopback0 ip address 3.3.3.3 255.255.255.0 ip router isis ! interface Serial0/0 no ip address shutdown serial restart-delay 0 ! interface Serial0/1 ip address 200.1.1.3 255.255.255.0 ip router isis encapsulation frame-relay serial restart-delay 0 clock rate 64000 isis priority 0 frame-relay map ip 200.1.1.1 301 broadcast frame-relay map clns 301 broadcast! interface Serial0/2 no ip address shutdown serial restart-delay 0 ! interface Serial0/3 no ip address shutdown serial restart-delay 0 ! router isis net 49.0001.2222.2222.2222.00 ! no ip http server no ip http secure-server ! control-plane ! ! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 ! ! endR4的配置：
R4#show run
Building configuration...Current configuration : 1036 bytes
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R4 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! interface Loopback0 ip address 4.4.4.4 255.255.255.0 ip router isis ! interface Serial0/0 no ip address shutdown serial restart-delay 0 ! interface Serial0/1 no ip address shutdown serial restart-delay 0 ! interface Serial0/2 ip address 200.1.1.4 255.255.255.0 ip router isis encapsulation frame-relay serial restart-delay 0 clock rate 64000 isis priority 0 frame-relay map ip 200.1.1.1 401 broadcast frame-relay map clns 401 broadcast! interface Serial0/3 no ip address shutdown serial restart-delay 0 ! router isis net 49.0001.3333.3333.3333.00 ! no ip http server no ip http secure-server ! control-plane ! !line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 ! ! end验证：查看路由表
R1#sh ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0 3.0.0.0/24 is subnetted, 1 subnets i L1 3.3.3.0 [115/20] via 200.1.1.3, Serial0/0 4.0.0.0/24 is subnetted, 1 subnets i L1 4.4.4.0 [115/20] via 200.1.1.4, Serial0/0 C 200.1.1.0/24 is directly connected, Serial0/0R3# show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
i L1 1.1.1.0 [115/20] via 200.1.1.1, Serial0/1 3.0.0.0/24 is subnetted, 1 subnets C 3.3.3.0 is directly connected, Loopback0 4.0.0.0/24 is subnetted, 1 subnets i L2 4.4.4.0 [115/30] via 200.1.1.1, Serial0/1 C 200.1.1.0/24 is directly connected, Serial0/1R4#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
i L1 1.1.1.0 [115/20] via 200.1.1.1, Serial0/2 3.0.0.0/24 is subnetted, 1 subnets i L2 3.3.3.0 [115/30] via 200.1.1.1, Serial0/2 4.0.0.0/24 is subnetted, 1 subnets C 4.4.4.0 is directly connected, Loopback0 C 200.1.1.0/24 is directly connected, Serial0/2全网的路由都有了，实验完成!
总结：在接口和多点接口下， IP 映射和CNLS 映射应该分别分配，命令分别是” franme-relay map clns” 和” franme-relay map
ip”