路由器口令的配置

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
• 配置路由器口令
• 验证路由口令的配置

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。再将RouterA和PC机相连，RouterB和Server相连。拓扑图如下：

四、实验配置文档

RouterA:

Router>enable 
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 shut
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)#int
RouterA-sjt(config)#interface se
RouterA-sjt(config)#interface serial 2/0
RouterA-sjt(config-if)#ip address 172.16.20.1 255.255.255.0
RouterA-sjt(config-if)#clock rate 56000
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>enable 
Router#conf
Router#configure te
Router#configure terminal 
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hos
Router(config)#hostname RouterB-sjt
RouterB-sjt(config)#int
RouterB-sjt(config)#interface F
RouterB-sjt(config)#interface FastEthernet 0/0
RouterB-sjt(config-if)#ip address 172.16.10.6 255.255.255.0
RouterB-sjt(config-if)#no shutd
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)#int
RouterB-sjt(config)#interface s
RouterB-sjt(config)#interface serial 2/0
RouterB-sjt(config-if)#ip address 172.16.20.2 255.255.255.0
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)#int
RouterB-sjt(config)#interface s
RouterB-sjt(config)#interface serial 3/0
RouterB-sjt(config-if)#ip address 172.16.40.1 255.255.255.0
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)#

RouterC-sjt:

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 se
RouterC-sjt(config)#interface serial 3/0
RouterC-sjt(config-if)#ip address 172.16.40.2 255.255.255.0
RouterC-sjt(config-if)#no shu
RouterC-sjt(config-if)#no shutdown 
RouterC-sjt(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
RouterC-sjt(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
RouterC-sjt(config-if)#

配置路由器A特权口令:

RouterA-sjt>enable 
RouterA-sjt#conf
RouterA-sjt#configure ter
RouterA-sjt#configure terminal 
Enter configuration commands, one per line.  End with CNTL/Z.
RouterA-sjt(config)#ena
RouterA-sjt(config)#enable se
RouterA-sjt(config)#enable secret twins

配置路由器console口令:

RouterA-sjt(config)#li
RouterA-sjt(config)#line con
RouterA-sjt(config)#line console 0
RouterA-sjt(config-line)#pas
RouterA-sjt(config-line)#password twins
RouterA-sjt(config-line)#login
RouterA-sjt(config-line)#lin
RouterA-sjt(config-line)#exit

配置路由器telnet口令:

RouterA-sjt(config)#line
RouterA-sjt(config)#line vty 0 ?
  <1-15>  Last Line number
  <cr>
RouterA-sjt(config)#line vty 0 15
RouterA-sjt(config-line)#pas
RouterA-sjt(config-line)#password twins
RouterA-sjt(config-line)#login
RouterA-sjt(config-line)#end
RouterA-sjt#
%SYS-5-CONFIG_I: Configured from console by console
RouterA-sjt#

五、验证实验结果

1. PC机使用telnet管理RouterA会话

1. RouterB和access server相连并成功备份ISO

RouterB-sjt>
RouterB-sjt>en
RouterB-sjt>enable 
RouterB-sjt#dir flash
Directory of flash:/
    3  -rw-     5571584          <no date>  pt1000-i-mz.122-28.bin
    2  -rw-       28282          <no date>  sigdef-category.xml
    1  -rw-      227537          <no date>  sigdef-default.xml
64016384 bytes total (58188981 bytes free)
RouterB-sjt#copy flash tftp
Source filename []? pt1000-i-mz.122-28.bin
Address or name of remote host []? 172.16.10.7
Destination filename [pt1000-i-mz.122-28.bin]? 
Writing pt1000-i-mz.122-28.bin....!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 5571584 bytes]
5571584 bytes copied in 3.225 secs (395850 bytes/sec)
RouterB-sjt#

1. 验证路由器口令的配置

User Access Verification
Password: 
RouterA-sjt>en
RouterA-sjt>enable 
Password: 
RouterA-sjt#show run
RouterA-sjt#show running-config 
Building configuration...
Current configuration : 858 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!

1）设置enable secret后, show running-config的输出

hostname RouterA-sjt
!
!
!
enable secret 5 $1$mERr$B.ufaHcpaunPOIa3RMcT//
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address 172.16.11.1 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet1/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial2/0
 ip address 172.16.20.1 255.255.255.0
 clock rate 56000
!
interface Serial3/0
 no ip address
 shutdown
!
interface FastEthernet4/0
 no ip address
 shutdown
!
interface FastEthernet5/0
 no ip address
 shutdown
!
ip classless
!
ip flow-export version 9
!
!
!
!
!
!
!

2）设置console password后, show running-config的输出

line con 0
 password twins
 login
!
line aux 0
!

3）设置telnet password后, show running-config的输出

line vty 0 4
 password twins
 login
line vty 5 15
 password twins
 login
!
!
!
end
RouterA-sjt#

六、实验总结

1. 熟练掌握了配置接口IP地址
2. 熟练掌握了配置路由器口令并验证了路由器口令
3. 在配置接口IP地址时，要将配置的接口的连接的接口配置在同一网段上
4. 在配置接口时要确认接口的名称以及接口在配置好是否处于up状态
5. 在连接拓扑图时要注意连线和接口的选择，如果选错了则配置会不成功

七、附件

下面给出该实验的文件

链接：https://pan.baidu.com/s/1RJnVH7FEarjga_GGM6rgmA 密码：9vvz