ospf配置笔记.docx

1、ospf配置笔记NBMA环境R3配置Enter configuration commands, one per line. End with CNTL/Z.r3(config)#router ospf 1*Mar 1 00:19:59.083: %OSPF-5-ADJCHG: Process 100, Nbr 8.8.8.6 on Serial1/1 from LOADING to FULL, Loading Doner3(config-router)#netr3(config-router)#network 8.8.8.3 0.0.0.0 arer3(config-router)#netwo

2、rk 8.8.8.3 0.0.0.0 area 0r3(config-router)#Zr3#*Mar 1 00:20:33.067: %SYS-5-CONFIG_I: Configured from console by consoler3#r3#r3#r3#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.5 1 FULL/DROTHER 00:01:51 4.4.4.2 Serial1/18.8.8.6 1 FULL/DR 00:01:46 4.4.4.3 Serial1/1r3#sh runBuil

3、ding configuration.hostname r3 interface Loopback0 ip address 8.8.8.3 255.255.255.255 interface Serial1/1 ip address 4.4.4.1 255.255.255.0 encapsulation frame-relay serial restart-delay 0 router ospf 100 log-adjacency-changes network 4.4.4.1 0.0.0.0 area 1 neighbor 4.4.4.2 priority 1 neighbor 4.4.4.

4、3 priority 1! router ospf 1 log-adjacency-changes network 8.8.8.3 0.0.0.0 area 0! R5配置Router#sh runBuilding configuration.hostname Routerinterface Loopback0 ip address 8.8.8.5 255.255.255.255! interface Serial1/1 ip address 4.4.4.2 255.255.255.0 encapsulation frame-relay serial restart-delay 0! rout

5、er ospf 100 log-adjacency-changes network 4.4.4.2 0.0.0.0 area 1 network 8.8.8.5 0.0.0.0 area 1! r6配置Router#sh runBuilding configuration.hostname Router interface Loopback0 ip address 8.8.8.6 255.255.255.255interface Serial1/1 ip address 4.4.4.3 255.255.255.0 encapsulation frame-relay serial restart

6、-delay 0router ospf 100 log-adjacency-changes network 4.4.4.3 0.0.0.0 area 1 network 8.8.8.6 0.0.0.0 area 1配置OSPF网络类型非广播r3#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.5 1 FULL/DROTHER 00:01:52 4.4.4.2 Serial1/18.8.8.6 1 FULL/DR 00:01:44 4.4.4.3 Serial1/1可能是r3比较早开启，所以作为DR。R5和

7、r6配上frame-relay map ip 4.4.4.3 100 broadcast和frame-relay map ip 4.4.4.3 200 broadcast后才能ping通在一个自治area中，没有area0依然能通信。竞选DR：让r5和r6的优先级为0，丧失竞选：r5(config)#int s1/1r5(config-if)#ip ospf pr5(config-if)#ip ospf priority 0r6(config)#int s 1/1r6(config-if)#ip ospf pr6(config-if)#ip ospf priority 0在三台路由器上运行cl

8、ear ip ospf processr3#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.5 0 2WAY/DROTHER 00:01:13 4.4.4.2 Serial1/18.8.8.6 0 2WAY/DROTHER 00:01:38 4.4.4.3 Serial1/1配置OSPF网络类型点到多点r3(config)#int s1/1r3(config-if)#ip ospf network point-to-multipointr5(config)#int s 1/1r5(config-if)#i

9、p ospf network point-to-multipointr5(config-if)#no ip ospf priority 0r6(config)#int s 1/1r6(config-if)#ip ospf network point-to-multipointr6(config-if)#no ip ospf priority 0r3#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.6 1 FULL/ - 00:01:31 4.4.4.3 Serial1/18.8.8.5 1 FULL/ -

10、 00:01:43 4.4.4.2 Serial1/1r5#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.3 0 FULL/ - 00:01:40 4.4.4.1 Serial1/1r6#sh ip ospf neiNeighbor ID Pri State Dead Time Address Interface8.8.8.3 0 FULL/ - 00:01:44 4.4.4.1 Serial1/1r6#ping 8.8.8.5Type escape sequence to abort.Sending

11、5, 100-byte ICMP Echos to 8.8.8.5, timeout is 2 seconds:!为什么8.8.8.3优先级为0？配置汇总（使用设备：r5，r6，r3，r4，switch）Router(config)#hostname r4r4(config)#int s 1/0r4(config-if)#ip addr4(config-if)#ip address 3.3.3.2 255.255.255.0r4(config-if)#no shutr4(config)#int loopback 0r4(config-if)#ip addr4(config-if)#ip add

12、ress 8.8.8.4 255.255.255.255r4(config-if)#exitr4(config)#ospfr4(config)#router ospf 100r4(config-router)#netr4(config-router)#network 3.3.3.2 0.0.0.0 arer4(config-router)#network 3.3.3.2 0.0.0.0 area 0r4(config-router)#netr4(config-router)#network 8.8.8.4 0.0.0.0 area 0r3(config)#int s 1/0r3(config-

13、if)#ip addr3(config-if)#ip address 3.3.3.1 255.255.255.0r3(config-if)#no shutr3(config-router)#network 3.3.3.1 0.0.0.0 area 0r3#sh ip routeCodes: 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

14、- 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 se

15、t 3.0.0.0/24 is subnetted, 1 subnetsC 3.3.3.0 is directly connected, Serial1/0 4.0.0.0/8 is variably subnetted, 3 subnets, 2 masksC 4.4.4.0/24 is directly connected, Serial1/1O 4.4.4.2/32 110/64 via 4.4.4.2, 00:16:24, Serial1/1O 4.4.4.3/32 110/64 via 4.4.4.3, 00:16:24, Serial1/1 8.0.0.0/32 is subnet

16、ted, 4 subnetsC 8.8.8.3 is directly connected, Loopback0O 8.8.8.4 110/65 via 3.3.3.2, 00:05:16, Serial1/0O 8.8.8.5 110/65 via 4.4.4.2, 00:16:24, Serial1/1O 8.8.8.6 110/65 via 4.4.4.3, 00:16:24, Serial1/1r4#sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGR

17、P 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

18、 o - ODR, P - periodic downloaded static routeGateway of last resort is not set 3.0.0.0/24 is subnetted, 1 subnetsC 3.3.3.0 is directly connected, Serial1/0 4.0.0.0/32 is subnetted, 3 subnetsO IA 4.4.4.1 110/64 via 3.3.3.1, 00:01:00, Serial1/0O IA 4.4.4.2 110/128 via 3.3.3.1, 00:01:00, Serial1/0O IA

19、 4.4.4.3 110/128 via 3.3.3.1, 00:01:00, Serial1/0 8.0.0.0/32 is subnetted, 4 subnetsO 8.8.8.3 110/65 via 3.3.3.1, 00:01:00, Serial1/0C 8.8.8.4 is directly connected, Loopback0O IA 8.8.8.5 110/129 via 3.3.3.1, 00:01:00, Serial1/0O IA 8.8.8.6 110/129 via 3.3.3.1, 00:01:00, Serial1/0r5#sh ip route Code

20、s: 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

21、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 3.0.0.0/24 is subnetted, 1 subnetsO IA 3.3.3.0 110/128 via 4.4.4.1, 00:00:15, Serial1/1 4.0.0.0/8 is variably subnetted, 3 subnets, 2 masksC

22、4.4.4.0/24 is directly connected, Serial1/1O 4.4.4.1/32 110/64 via 4.4.4.1, 00:11:13, Serial1/1O 4.4.4.3/32 110/128 via 4.4.4.1, 00:11:13, Serial1/1 8.0.0.0/32 is subnetted, 4 subnetsO IA 8.8.8.3 110/65 via 4.4.4.1, 00:11:13, Serial1/1O IA 8.8.8.4 110/129 via 4.4.4.1, 00:00:05, Serial1/1C 8.8.8.5 is

23、 directly connected, Loopback0O 8.8.8.6 110/129 via 4.4.4.1, 00:11:13, Serial1/1在r3上做汇总：r3(config)#router ospf 100r3(config-router)#area 1 rar3(config-router)#area 1 range 4.4.4.0 255.255.255.248r3(config-router)#area 0 range 3.3.3.0 255.255.255.252r4#sh ip routeCodes: C - connected, S - static, R -

24、 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, *

25、- candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set 3.0.0.0/24 is subnetted, 1 subnetsC 3.3.3.0 is directly connected, Serial1/0 4.0.0.0/29 is subnetted, 1 subnetsO IA 4.4.4.0 110/64 via 3.3.3.1, 00:00:55, Serial1/0 8.0.0.0/32

26、 is subnetted, 4 subnetsO 8.8.8.3 110/65 via 3.3.3.1, 00:09:57, Serial1/0C 8.8.8.4 is directly connected, Loopback0O IA 8.8.8.5 110/129 via 3.3.3.1, 00:09:57, Serial1/0O IA 8.8.8.6 110/129 via 3.3.3.1, 00:09:57, Serial1/0r5#sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D

27、- 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

28、-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set 3.0.0.0/24 is subnetted, 1 subnetsO IA 3.3.3.0 110/128 via 4.4.4.1, 00:12:16, Serial1/1 4.0.0.0/8 is variably subnetted, 3 subnets, 2 masksC 4.4.4.0/24 is directly connected, Serial1/1O 4.4.4.1/32 110/6

29、4 via 4.4.4.1, 00:23:13, Serial1/1O 4.4.4.3/32 110/128 via 4.4.4.1, 00:23:13, Serial1/1 8.0.0.0/32 is subnetted, 4 subnetsO IA 8.8.8.3 110/65 via 4.4.4.1, 00:23:13, Serial1/1O IA 8.8.8.4 110/129 via 4.4.4.1, 00:12:06, Serial1/1C 8.8.8.5 is directly connected, Loopback0O 8.8.8.6 110/129 via 4.4.4.1,

30、00:23:13, Serial1/1R5#sh ip ospf database OSPF Router with ID (8.8.8.5) (Process ID 100) Router Link States (Area 1)Link ID ADV Router Age Seq# Checksum Link count8.8.8.3 8.8.8.3 1555 0x80000007 0x0053A3 38.8.8.5 8.8.8.5 1695 0x80000008 0x0041FC 38.8.8.6 8.8.8.6 1670 0x80000002 0x0083BB 3 Summary Ne

31、t Link States (Area 1)Link ID ADV Router Age Seq# Checksum3.3.3.0 8.8.8.3 893 0x80000001 0x00CC0C8.8.8.3 8.8.8.3 1550 0x80000001 0x0081848.8.8.4 8.8.8.3 883 0x80000001 0x00F9CAr3#sh ip ospf database OSPF Router with ID (8.8.8.3) (Process ID 100) Router Link States (Area 0)Link ID ADV Router Age Seq# Checksum Link count8.8.8.3 8.8.8.3 970 0x80000003 0x00729D 38.8.8.4 8.8.8.4 970 0x80000004 0x