SMB SSL-VPN: User principal name (UPN) support on SMB SSL VPN devices
Question:
User principle name support for AD authentication on SMB SSL box
Resolution/Workaround:
User Principal Name (UPN) is not supported on any of the SSL VPN devices as of now, However Enhancement request has been filed and SonicWall engineering team is evaluating this to support in future versions.
Tracking ID: ER#782