通過動(dòng)態(tài)路由協(xié)議實(shí)現(xiàn)鏈路備份

1、通過動(dòng)態(tài)路由協(xié)議實(shí)現(xiàn)鏈路備份【實(shí)驗(yàn)名稱】 通過動(dòng)態(tài)路由協(xié)議實(shí)現(xiàn)鏈路備份【實(shí)驗(yàn)?zāi)康摹?掌握通過在不同鏈路上配置不同的路由協(xié)議實(shí)現(xiàn)鏈路備份?！颈尘懊枋觥?你是公司高級(jí)網(wǎng)絡(luò)管理員，公司內(nèi)部有一個(gè)很重要的服務(wù)器所在網(wǎng)段為192.168.12.0/24，平常訪問通過R1,R3的OSPF路由協(xié)議，為了保證該網(wǎng)段隨時(shí)能夠訪問，不能因?yàn)殒溌饭收铣鰡栴}，要求你實(shí)現(xiàn)一個(gè)備份冗余的功能，請(qǐng)給予支持?！緦?shí)現(xiàn)功能】 保證在擁有冗余鏈路的時(shí)候，主鏈路失效，備份鏈路工作?！緦?shí)驗(yàn)拓?fù)洹?【實(shí)驗(yàn)設(shè)備】 R2624(3臺(tái)) V35DCE（2根）、V35DTE（2根）1 / 8【實(shí)驗(yàn)步驟】 第一步：基本配置 Red-Giant(c

2、onfig)#hos R3R3(config)#int s0R3(config-if)#ip add 192.168.13.3 255.255.255.0R3(config-if)#clock rate 64000R3(config-if)#no shR3(config-if)#int f0R3(config-if)#ip add 192.168.4.1 255.255.255.0R3(config-if)#no shR3(config)#int f1R3(config-if)#ip add 192.168.3.1 255.255.255.0R3(config-if)#no shR3(conf

3、ig)#int s1R3(config-if)#ip add 192.168.23.3 255.255.255.0R3(config-if)#cl ra 64000R3(config-if)#no shR3(config-if)#endRed-Giant(config)#Red-Giant(config)# hos R2R2(config)#int s0R2(config-if)# int s0R2(config-if)#ip add 192.168.23.2 255.255.255.0R2(config-if)#no shR2(config-if)#int f0R2(config-if)#i

4、p add 192.168.12.2 255.255.255.0R2(config-if)#no shR2(config-if)#endRed-Giant(config)#hos R1R1(config)#int s0R1(config-if)#ip add 192.168.12.1 255.255.255.0R1(config-if)#no shR1(config-if)#int s0R1(config-if)#no shR1(config-if)#endR1#conf tR1(config)#int f0R1(config-if)#ip add 192.168.12.1 255.255.2

5、55.0R1(config-if)#no sh驗(yàn)證測試：R1#ping 192.168.13.3Type escape sequence to abort.Sending 5, 100-byte ICMP Echoes to 192.168.13.3, timeout is 2 seconds:!R2#ping 192.168.23.3Type escape sequence to abort.Sending 5, 100-byte ICMP Echoes to 192.168.23.3, timeout is 2 seconds:!第二步：配置主鏈路路由以及備份鏈路路由R1(config)#

6、router os 1R1(config-router)#net 192.168.13.0 0.0.0.255 area 0R1(config-router)#net 192.168.12.0 0.0.0.255 area 2R3(config)#router os 1R3(config-router)#net 192.168.13.0 0.0.0.255 area 0R3(config-router)#net 192.168.4.0 0.0.0.255 area 1R3(config-router)#net 192.168.3.0 0.0.0.255 area1R3(config)#rout

7、er rip ! 配置RIP協(xié)議作為備份，RIP協(xié)議管理距離大于OSPF，OSPF自動(dòng)成為主路由協(xié)議R3(config-router)#ver 2 R3(config-router)# net 192.168.23.0 R3(config-router)#no auto-summaryR2(config)#router ripR2(config-router)#version 2 R2(config-router)#net 192.168.23.0R2(config-router)#net 192.168.12.0 R2(config-router)#no auto-summary 驗(yàn)證測試：

8、R3#sh ip roCodes: C - connected, S - static, R - RIP O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2Gateway of last resort is not setO IA 192.168.12.0/24 110/49 via 192.168.13.1, 00:00:42, Serial0C 192.168.13.0/24 is directly connected, Serial0C 192.168.3.0/24 is

9、directly connected, FastEthernet1C 192.168.4.0/24 is directly connected, FastEthernet0C 192.168.23.0/24 is directly connected, Serial1第三步：當(dāng)主鏈路down的時(shí)候，可以通過備份鏈路通信R3(config)#int s0R3(config-if)#shutR3#sh ip roCodes: C - connected, S - static, R - RIP O - OSPF, IA - OSPF inter area E1 - OSPF external ty

10、pe 1, E2 - OSPF external type 2Gateway of last resort is not setR 192.168.12.0/24 120/1 via 192.168.23.2, 00:00:13, Serial1C 192.168.3.0/24 is directly connected, FastEthernet1C 192.168.4.0/24 is directly connected, FastEthernet0C 192.168.23.0/24 is directly connected, Serial1第四步：當(dāng)主鏈路up的時(shí)候，仍然用主鏈路通信R

11、3(config)#int s0R3(config-if)#no shR3#sh ip roCodes: C - connected, S - static, R - RIP O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2Gateway of last resort is not setO IA 192.168.12.0/24 110/49 via 192.168.13.1, 00:14:45, Serial0C 192.168.13.0/24 is directly con

12、nected, Serial0C 192.168.3.0/24 is directly connected, FastEthernet1C 192.168.4.0/24 is directly connected, FastEthernet0C 192.168.23.0/24 is directly connected, Serial1 【注意事項(xiàng)】配置備份路由的管理距離必須大于主路由的管理距離?！緟⒖寂渲谩縍3#sh runCurrent configuration:!version 6.14(2)!hostname R3!ip subnet-zero!interface FastEther

13、net0 ip address 192.168.4.1 255.255.255.0!interface FastEthernet1 ip address 192.168.3.1 255.255.255.0!interface FastEthernet2 no ip address shutdown!interface FastEthernet3 no ip address shutdown!interface Serial0 ip address 192.168.13.3 255.255.255.0 clock rate 64000!interface Serial1 ip address 1

14、92.168.23.3 255.255.255.0 clock rate 64000!router ospf 1 network 192.168.13.0 0.0.0.255 area 0 network 192.168.4.0 0.0.0.255 area 1 network 192.168.3.0 0.0.0.255 area 1!router rip version 2 network 192.168.23.0 no auto-summary!ip classless!line con 0line aux 0line vty 0 4 login!endR1#sh runCurrent c

15、onfiguration:!version 6.14(2)!hostname R1!ip subnet-zero!interface FastEthernet0 ip address 192.168.12.1 255.255.255.0!interface FastEthernet1 no ip address shutdown!interface FastEthernet2 no ip addressshutdown!interface FastEthernet3 no ip address shutdown!interface Serial0 ip address 192.168.13.1

16、 255.255.255.0!interface Serial1 no ip address shutdown!router ospf 1 network 192.168.13.0 0.0.0.255 area 0 network 192.168.12.0 0.0.0.255 area 2!ip classless!line con 0line aux 0line vty 0 4 no login！endR2#sh runCurrent configuration:!version 6.14(2)!hostname R2!ip subnet-zero!interface FastEthernet0 ip address 192.168.12.2 255.255.255.0!interface FastEthernet1 no ip address shutdown!interface FastEthernet2 no ip addressno ip address shutdown!interface FastEthernet3 no ip address shutdown!in