7.5-Telnet配置

R1：

[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 12.1.1.1 24
[R1-GigabitEthernet0/0/0]qu
[R1]telnet server enable 
[R1]aaa
[R1-aaa]local	
[R1-aaa]local-user orcy privilege level 3 password cipher 123
[R1-aaa]local-user orcy ref="https://xwenw.com/tag/service" target="_blank">service-type telnet
[R1-aaa]qu
[R1]user-interface vty 0 4	
[R1-ui-vty0-4]authentication-mode aaa

Telnet用户名：orcy 密码：123

vty：虚拟终端线路(虚拟接口），路由器为每个远程登录的用户开放一条虚拟线路

R2：

[R2]int g0/0/0 
[R2-GigabitEthernet0/0/0]ip add 12.1.1.2 24
[R2-GigabitEthernet0/0/0]qu
[R2]qu
<R2>telnet 12.1.1.1
  Press CTRL_] to quit telnet mode
  Trying 12.1.1.1 ...
  Connected to 12.1.1.1 ...

Login authentication


Username:orcy
Password:
<R1>

此时在客户端输入正确的账号密码即可远程登录R1

注：①查看登录用户

<R1>dis access-user

<R1>dis users

②Telnet明文传输数据，远距离不安全（可被抓包或端口镜像）