Hi Jihoon,
When you are logging into the switch for the first time, you would be provided option to change the failsafe username and password and then a recommendation would be provided to change the default admin password.
***************************************Output truncated **********************
This switch currently has all management methods enabled for convenience reasons .Please answer these questions about the security settings you would like to use.
Changing the default failsafe account username and password is highly
recommended. If you choose to do so, please remember the username and
password as this information cannot be recovered.
Would you like to change the failsafe account username and password
now? [y/N]:
Would you like to permit failsafe account access via the management port?
[y/N]:
Since you have chosen less secure management methods, please remember to
increase the security of your network by taking the following actions:
* change your admin password
**********************************************************************************************
As discussed above, it is not a constraint that the password should be changed at the first login. Whenever the switch is unconfigured or booted into the factory default, it has to be considered as the first login.
If you need any additional notification for the user to change the password whenever the switch is unconfigured, we can use a default.xsf script to create a banner which would notify the user to change the password.
default.xsf:
BD-8810.1 # vi default.xsf
configure banner after-login
#######################################################
ENSURE TO CHANGE THE ADMIN PASSWORD USING THE COMMAND##
Configure account admin ##
#######################################################
Whenever the switch is unconfigured, your login prompt would look like below:
Authentication Service (AAA) on the master node is now available for login.
Loading default.xsf.
Script Loaded Successfully.
The output of loading default script can be seen by executing "show script output default".
login: admin
password:
ExtremeXOS
Copyright (C) 1996-2014 Extreme Networks. All rights reserved.
Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438; 6,912,592; 6,954,436; 6,977,891; 6,980,550; 6,981,174; 7,003,705; 7,017,082; 7,046,665; 7,126,923; 7,142,509; 7,149,217; 7,152,124; 7,154,861; 7,245,619; 7,245,629; 7,269,135;
Press the or '?' key at any time for completions.
Remember to save your configuration changes.
#######################################################
ENSURE TO CHANGE THE ADMIN PASSWORD USING THE COMMAND##
Configure account admin ##
#######################################################
Note: This script has to be configured manually. So, we cannot do much for the login prompt of the out of the box switches for the first time.
Hope this helps!