Using a serial console with 38400,8,N,1
if you need a password:
Jinhua1920unauthorized
_cmdline-mode on
The command: _hidecmd open you a new level...
In case you can not log in to the web interface:
Give the following commands:
system-view
ip http enable
ip http port 80
ip http acl 2000
local-user admin
pasword <hereyournewpassword>
authorization-attribute level 3
quit
