When adding a Virtual Network Assurance Gateway to the DX Netops Portal a username and.password is needed.
Where are these credentials defined?
DX NetOps Virtual Network Assurance all supported versions
DX Netops Performance Management all supported versions
The default VNA username is admin, the password is what was specified at install time at the prompt:
Please enter the VNA UI password for admin user (Same password will be used for Wildfly & JMS) >
If the password is unknown, it can be reset using the instructions in Update a Forgotten VNA Console Password