維護(hù)一個(gè)局域網(wǎng)

1、案例二 維護(hù)一個(gè)局域網(wǎng)【背景描述】假設(shè)某臺(tái)路由器的配置文件由于誤操作或其他某種原因被破壞了，現(xiàn)在需要從TFTP服務(wù)器上的備份配置文件中恢復(fù)?！緦?shí)現(xiàn)功能】 使網(wǎng)絡(luò)管理員可以備份配置文件，并且將配置恢復(fù)到交換機(jī)上?！臼褂迷O(shè)備】設(shè)備類型設(shè)備名稱設(shè)備數(shù)量交換機(jī)路由器router1三層交換機(jī)雙絞線2計(jì)算機(jī)1【案例拓?fù)洹俊緦?shí)現(xiàn)過(guò)程】步驟1 先查看路由器的配置RA#show running-configBuilding configuration.Current configuration:!version 6.14(9coll)!hostname "RA"!enable passwor

2、d 123!ip subnet-zero!interface Loopback0 ip address !interface FastEthernet0!interface FastEthernet1 ip address shutdown!interface FastEthernet2 no ip address shutdown!interface FastEthernet3 no ip address shutdown!interface Serial0 no ip address shutdown!interface Serial1 ip address encapsulation f

3、rame-relay frame-relay inverse-arp!router rip version 2 network .0 network .0 no auto-summary!ip classless!line con 0 password 123 loginline aux 0line vty 0 4 loginline vty 5 19 login!end測(cè)試連通性：在路由器上ping服務(wù)器地址Type escape sequence to abort.!Success rate is 100 percent (5/5), round-trip min/avg/max = 1/

4、1/4 ms步驟2 備份路由器配置RA#copy running-config tftpName of configuration file to write ra-confg? config.textBuilding configuration.Writing config.text ! OK或者RA#copy startup-config tftpName of configuration file to write ra-confg? config.textWriting config.text ! OK驗(yàn)證測(cè)試：驗(yàn)證TFTP服務(wù)器上的配置文件打開(kāi)TFTP服務(wù)器上的配置文件C:confi

5、g.text (用記事本就可以查看)!version 6.14(9coll)!hostname "RA"!enable password 123!ip subnet-zero!interface Loopback0 ip address !interface FastEthernet0!interface FastEthernet1 ip address shutdown!interface FastEthernet2 no ip address shutdown!interface FastEthernet3 no ip address shutdown!interfac

6、e Serial0 no ip address shutdown!interface Serial1 ip address encapsulation frame-relay frame-relay inverse-arp!router rip version 2 network .0 network .0 no auto-summary!ip classless!line con 0 password 123 loginline aux 0line vty 0 4 loginline vty 5 19 login!end步驟3 恢復(fù)路由器配置RA#erase startup-configRA

7、#reloadProceed with reload? confirm查看路由器配置Red-Giant#show running-configBuilding configuration.Current configuration:!version 6.14(9coll)!hostname "Red-Giant"!ip subnet-zero!interface FastEthernet0 no ip address shutdown!interface FastEthernet1 no ip address shutdown!interface FastEthernet2

8、 no ip address shutdown!interface FastEthernet3 no ip address shutdown!interface Serial0 no ip address shutdown!interface Serial1 no ip address shutdown!ip classless!line con 0line aux 0line vty 0 4 loginline vty 5 19 login!end先給和TFTP相連的服務(wù)器配置一個(gè)IP地址測(cè)試連通性Type escape sequence to abort.!Success rate is

9、100 percent (5/5), round-trip min/avg/max = 1/1/4 ms然后進(jìn)行還原Red-Giant#copy tftp running-configName of configuration file red-giant-confg? config.text !OK - 733/32727 bytes驗(yàn)證測(cè)試：驗(yàn)證路由器上已經(jīng)更新為新的配置Red-Giant#copy tftp running-configName of configuration file red-giant-confg? config.text !OK - 733/32727 bytes

10、RA#show running-configBuilding configuration.Current configuration:!version 6.14(9coll)!hostname "RA"!enable password 123!ip subnet-zero!interface Loopback0 ip address !interface FastEthernet0!interface FastEthernet1 ip address shutdown!interface FastEthernet2 no ip address shutdown!interf

11、ace FastEthernet3 no ip address shutdown!interface Serial0 no ip address shutdown!interface Serial1 ip address encapsulation frame-relay frame-relay inverse-arp!router rip version 2 network .0 network .0 no auto-summary!ip classless!line con 0 password 123 loginline aux 0line vty 0 4 loginline vty 5

12、 19 login!end參考配置Red-Giant#copy tftp running-configName of configuration file red-giant-confg? config.text !OK - 733/32727 bytesRA#show running-configBuilding configuration.Current configuration:!version 6.14(9coll)!hostname "RA"!enable password 123!ip subnet-zero!interface Loopback0 ip address !interface FastEthernet0!interface FastEthernet1 ip address shutdown!interface FastEthernet2 no ip address shutdown!interface FastEthernet3 no ip address shutdown!interface Serial0 no ip address shutdown!interface Serial1 ip address encapsulation frame-relay frame-relay in