telnet server enable 开启telnet
line vty 0 4 telnet认证方式是scheme
authentication-mode scheme
local-user admin class manage 用户名admin
password simple admin 密码admin
service-typessh telnet terminal https ssh 这个用户允许干什么telnet等
authorization-attribute user-role level-15 把能给的权限都给
authorization-attribute user-rolecontext-admin 把能给的权限都给
authorization-attribute user-rolenetwork-admin 把能给的权限都给
authorization-attribute user-rolenetwork-operator 把能给的权限都给
