1.无用户名密码
user-interface console 0 #进入虚拟用户视图
authentication-mode none #配置授权无须认证
user privilege level 3 #配置登录等级为特权模式
2.要密码防问的配置
user-interface console 0
user privilege level 3
authentication-mode password #配置授权模式为密码认证
set authentication password simple aaa #配置密码
3.进行本地用户和密码的配置
user-interface console 0
authentication-mode aaa
aaa
local-user admin password simple admin
local-user admin privilege level 3
local-user admin service-type terminal