一、实验目的
通过本实验,可以掌握以下技能:
- 配置接口IP地址
- 配置静态路由
- 验证静态路由的配置
二、设备需求
- Cisco路由器3台,分别命名为RouterA、RouterB和RouterC。其中RouterA具有1个以太网接口和1个串行接口;RouterB具有1个以太网接口和2个串行接口;RouterC具有1个以太网接口和1个串行接口
- 3根交叉线序双绞线,2根串行线
- 1台access server,及用于反向Telnet的相应电缆
- 1台带有超级终端程序的PC机,以及Console电缆及转接器
三、拓扑结构及接口IP配置
实验的拓扑结构如图所示。通过2根串行线分别把RouterA和RouterB连接起来,RouterB和RouterC连接起来。
各路由器使用的接口及其编号见图所示的标注,各接口IP地址分配如下:
- RouterA: F0/0:172.16.11.1 S2/0:172.16.20.1
- RouterB:F0/0:172.16.10.6 S2/0:172.16.20.2 S3/0:172.16.40.1
- RouterC: F0/0:172.16.50.1 S2/0:172.16.40.2
四、实验配置文档
1. 基本网络配置
RouterA:
Router>en
Router>enable
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hos
Router(config)#hostname RouterA-sjt
RouterA-sjt(config)#inte
RouterA-sjt(config)#interface F
RouterA-sjt(config)#interface FastEthernet 0/0
RouterA-sjt(config-if)#ip address 172.16.11.1 255.255.255.0
RouterA-sjt(config-if)#no shu
RouterA-sjt(config-if)#no shutdown
RouterA-sjt(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
RouterA-sjt(config-if)#exit
RouterA-sjt(config)#inte
RouterA-sjt(config)#interface se
RouterA-sjt(config)#interface serial 2/0
RouterA-sjt(config-if)#ip ad
RouterA-sjt(config-if)#ip address 172.16.20.1 255.255.255.0
RouterA-sjt(config-if)#no shut
RouterA-sjt(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
RouterA-sjt(config-if)#exit
RouterA-sjt(config)#
RouterB:
Router>
Router>ena
Router>enable
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#host
Router(config)#hostname RouterB-sjt
RouterB-sjt(config)#inte
RouterB-sjt(config)#interface F
RouterB-sjt(config)#interface FastEthernet 0/0
RouterB-sjt(config-if)#ip ad
RouterB-sjt(config-if)#ip address 172.16.10.6 255.255.255.0
RouterB-sjt(config-if)#no shut
RouterB-sjt(config-if)#no shutdown
RouterB-sjt(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
RouterB-sjt(config-if)#exit
RouterB-sjt(config)#inte
RouterB-sjt(config)#interface se
RouterB-sjt(config)#interface serial 2/0
RouterB-sjt(config-if)#ip ad
RouterB-sjt(config-if)#ip address 172.16.20.2 255.255.255.0
RouterB-sjt(config-if)#clo
RouterB-sjt(config-if)#clock ra
RouterB-sjt(config-if)#clock rate 56000
RouterB-sjt(config-if)#no shut
RouterB-sjt(config-if)#no shutdown
RouterB-sjt(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
RouterB-sjt(config-if)#exit
RouterB-sjt(config)#inte
RouterB-sjt(config)#interface se
RouterB-sjt(config)#interface serial 3/0
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
RouterB-sjt(config-if)#ip ad
RouterB-sjt(config-if)#ip address 172.16.40.1 255.255.255.0
RouterB-sjt(config-if)#clo
RouterB-sjt(config-if)#clock ra
RouterB-sjt(config-if)#clock rate 56000
RouterB-sjt(config-if)#no shut
RouterB-sjt(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial3/0, changed state to down
RouterB-sjt(config-if)#exit
RouterB-sjt(config)#
RouterC:
Router>ena
Router>enable
Router#conf
Router#configure ter
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#host
Router(config)#hostname RouterC-sjt
RouterC-sjt(config)#inte
RouterC-sjt(config)#interface F
RouterC-sjt(config)#interface FastEthernet 0/0
RouterC-sjt(config-if)#ip ad
RouterC-sjt(config-if)#ip address 172.16.50.1 255.255.255.0
RouterC-sjt(config-if)#no shut
RouterC-sjt(config-if)#no shutdown
RouterC-sjt(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
RouterC-sjt(config-if)#exit
RouterC-sjt(config)#inte
RouterC-sjt(config)#interface se
RouterC-sjt(config)#interface serial 3/0
RouterC-sjt(config-if)#ip ad
RouterC-sjt(config-if)#ip address 172.16.40.2 255.255.255.0
RouterC-sjt(config-if)#no shut
RouterC-sjt(config-if)#no shutdown
RouterC-sjt(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
RouterC-sjt(config-if)#exit
RouterC-sjt(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
2. 配置静态路由
配置RouterA静态路由:
RouterA-sjt#
RouterA-sjt#conf
RouterA-sjt#configure te
RouterA-sjt#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
RouterA-sjt(config)#ip rou
RouterA-sjt(config)#ip route 172.16.10.0 255.255.255.0 172.16.20.2
RouterA-sjt(config)#ip route 172.16.40.0 255.255.255.0 172.16.20.2
RouterA-sjt(config)#ip route 172.16.50.0 255.255.255.0 172.16.20.2
配置RouterB静态路由
RouterB-sjt>
RouterB-sjt>ena
RouterB-sjt>enable
RouterB-sjt#conf
RouterB-sjt#configure ter
RouterB-sjt#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
RouterB-sjt(config)#ip rout
RouterB-sjt(config)#ip route 172.16.11.0 255.255.255.0 172.16.20.1
RouterB-sjt(config)#ip route 172.16.50.0 255.255.255.0 172.16.40.2
RouterB-sjt(config)#
配置RouterC静态路由
RouterC-sjt>
RouterC-sjt>ena
RouterC-sjt>enable
RouterC-sjt#
RouterC-sjt#conf
RouterC-sjt#configure te
RouterC-sjt#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
RouterC-sjt(config)#ip r
RouterC-sjt(config)#ip route 172.16.10.0 255.255.255.0 172.16.40.1
RouterC-sjt(config)#ip route 172.16.11.0 255.255.255.0 172.16.40.1
RouterC-sjt(config)#ip route 172.16.20.0 255.255.255.0 172.16.40.1
五、验证实验结果
- show ip route
该命令显示路由器的IP路由选择表,详细指出了路由器是如何获悉网络和发现路由的,该命令如下:
RouterA:
RouterA-sjt#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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 route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 5 subnets
S 172.16.10.0 [1/0] via 172.16.20.2
C 172.16.11.0 is directly connected, FastEthernet0/0
C 172.16.20.0 is directly connected, Serial2/0
S 172.16.40.0 [1/0] via 172.16.20.2
S 172.16.50.0 [1/0] via 172.16.20.2
RouterB:
RouterB-sjt#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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 route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 5 subnets
C 172.16.10.0 is directly connected, FastEthernet0/0
S 172.16.11.0 [1/0] via 172.16.20.1
C 172.16.20.0 is directly connected, Serial2/0
C 172.16.40.0 is directly connected, Serial3/0
S 172.16.50.0 [1/0] via 172.16.40.2
RouterC:
RouterC-sjt#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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 route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 5 subnets
S 172.16.10.0 [1/0] via 172.16.40.1
S 172.16.11.0 [1/0] via 172.16.40.1
S 172.16.20.0 [1/0] via 172.16.40.1
C 172.16.40.0 is directly connected, Serial3/0
C 172.16.50.0 is directly connected, FastEthernet0/0
- ping 指令的使用
路由器RouterA去ping路由器RouterC
PCA去ping PCB
PCA去ping ServerC
六、实验总结
- 学会了配置接口IP地址和静态路由
- 在配置静态ip时PC机必须要配置网关
- 学会了使用show ip route和ping命令去验证静态路由配置结果
- 通过串行线连接的2个路由器在2个接口都配置好ip后才会变成绿色,成功互相访问
- 对PT有了进一步的了解和熟悉
七、附件
下面给出该实验的文件:
链接:https://pan.baidu.com/s/1ZdLA4swUn3tOJ4aMrVEXGQ 密码:rpy0