实验

模拟 telnet

server端（进入配置模式）

R2#configure terminal 
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#
R2(config)#line vty 0
R2(config-line)#
R2(config-line)#password testcisco
R2(config-line)#login
R2(config-line)#

client端

ROUTER-1>telnet 12.1.1.2
Trying 12.1.1.2 ... Open


User Access Verification

Password: 
R2>
R2>show ip interface brief
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            12.1.1.2        YES NVRAM  up                    up