Should be the username/password of the Windows user having permission to the shared folder.
Basic steps for access shared folder from mac:
1. Click Go – Connect to Server on Finder menu.
Go - Connect menu
2. And type
smb://destination_computer_name or
smb://destination_computer_ip_address on the Server Address input, for example :
smb://server-sql or
smb://192.168.1.1.
Connect dialog
3. You can add the address to your list with click the + button.
Add button
4. And it is connecting…
Connecting...
5. If you’re access that folder for the first time you will confirm for the Workgroup name, User name and Password and just fill it with your office Workgroup name and user name/password fill with user name that registered in destination computer (Windows user name).
Authentication
Thanks,
KevinZ - NeoRouter team
6. And list folder that shared in the destination computer will show up.