设置2次认证

1.设置su超级密码

super password level 3 cipher 密码

2.创建amdin普通用户

local-user admin

password cipher 密码

service-type telnet terminal

level 1

3.设置登录验证模式

user-interface aux 0 7

user-interface vty 0 4

authentication-mode scheme

protocol inbound telnet

普通设置Telnet密码

user-interface aux 0

user-interface vty 0 4

authentication-mode scheme

user privilege level 3

set authentication password cipher 密码

protocol inbound telnet