You can add a random user on the commandline like this:
(Aruba7640-US) #local-userdb add username user1 generate-password
GuestConnect
Username: user1
Password: EIII9029
Start date: Tue Dec 5 04:46:00 2017
Expiration: none
You can just type "encrypt disable" and then "show local-userdb" to see all of the usernames and passwords:
(Aruba7005-US) #encrypt disable
(Aruba7005-US) #show local-userdb
User Summary
------------
Name Password Role E-Mail Enabled Expiry Status Sponsor-Name Remote-IP Grantor-Name
---- -------- ---- ------ ------- ------ ------ ------------ --------- ------------
test test123 guest Yes Active 0.0.0.0 admin
user1 EIII9029 guest Yes Active 0.0.0.0 admin
User Entries: 3