Packet Tracer 5.0实验(二) 交换机的Telnet远程登录设置

一、实验目标

  掌握采用telnet方式配置交换机的方法

 

二、技术原理

•  配置交换机的管理IP地址(计算机的IP地址与交换机管理IP地址在同一网段)；
•  为telnet用户配置用户名和登录口令：

 Switch(config)#enble password  xxxx           //设置进入特权模式的密码；

 Switch(config-line)#password xxxx              //可以设置通过console端口连接设备及telnet远程登录时所需要的密码。

Switch(config)#line console 0
Switch(config-line)#password xxxx                  //设置通过console端口连接设备的密码
Switch(config-line)#login
Switch(config)#line vty 0 4
Switch(config-line)#password xxxx                  //设置telnet远程登录密码
Switch(config-line)#login

三、实验步骤

实验拓扑

 

Switch>en
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

1、配置交换机的管理IP地址

Switch(config)#interface vlan 1                           //默认情况下交换机所有端口都处于 vlan 1 当中
Switch(config-if)#ip address 192.168.1.1 255.255.255.0      //配置交换机管理IP地址
Switch(config-if)#no shutdown                           //开启Interface Vlan1

%LINK-5-CHANGED: Interface Vlan1, changed state to up

Switch(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up

Switch(config-if)#exit

2、设置进入特权模式的密码

Switch(config)#enable password 123456             //设置进入特权模式的密码
Switch(config)#line console ?
  <0-0>  First Line number

3、设置通过console端口连接设备的密码

Switch(config)#line console 0
Switch(config-line)#password asdf                      //设置通过console端口连接设备的密码
Switch(config-line)#login
Switch(config-line)#exit
Switch(config)#line vty ?
  <0-15>  First Line number

4、设置telnet远程登录密码

Switch(config)#line vty 0 4
Switch(config-line)#password abc123                  //设置telnet远程登录密码
Switch(config-line)#login
Switch(config-line)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console

 

5、查看配置情况

Switch#show running-config
Building configuration...

Current configuration : 1064 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
enable password 123456
!
!
!
interface FastEthernet0/1
!
......
!
interface FastEthernet0/24
!
interface GigabitEthernet1/1
!
interface GigabitEthernet1/2
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
!
!
line con 0

 password asdf
 login

!
line vty 0 4
 password abc123
 login
line vty 5 15
 login
!
!
end


Switch#

 

四、验证

1、验证通过console端口连接设备的密码

Press RETURN to get started.


User Access Verification

Password:                                //这里输入asdf

Switch>

2、验证进入特权模式的密码

Switch>en
Password:                                //这里输入123456

Switch#

3、验证telnet远程登录密码

a. 给PC机设置IP地址

b. 打开Command Prompt

Packet Tracer PC Command Line 1.0

PC>ipconfig

 

IP Address......................: 192.168.1.2

Subnet Mask.....................: 255.255.255.0

Default Gateway.................: 192.168.1.1

 

PC>ping 192.168.1.1

 

Pinging 192.168.1.1 with 32 bytes of data:

 

Request timed out.

Reply from 192.168.1.1: bytes=32 time=32ms TTL=255

Reply from 192.168.1.1: bytes=32 time=32ms TTL=255

Reply from 192.168.1.1: bytes=32 time=31ms TTL=255

 

Ping statistics for 192.168.1.1:

    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),

Approximate round trip times in milli-seconds:

    Minimum = 31ms, Maximum = 32ms, Average = 31ms

 

PC>telnet 192.168.1.1                             //远程登录

Trying 192.168.1.1 ...Open

 

 

User Access Verification

 

Password:                                              //vty密码

Switch>en

Password:                                              //enable密码

Switch#show running-config

Building configuration...

 

Current configuration : 1063 bytes

!

version 12.2

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

!

hostname Switch

!

enable password 123456

!

!

!

interface FastEthernet0/1

!

......

interface FastEthernet0/24

!

interface GigabitEthernet1/1

!

interface GigabitEthernet1/2

!

interface Vlan1

 ip address 192.168.1.1 255.255.255.0

!

!

line con 0

 password asdf
 login

!

line vty 0 4

 password abc123

 login

line vty 5 15

 login

!

!

end

 

Switch#