we want to use smart card authentication in our vcenter. The problem we have, our PKI Infrastructure gives us user certificates (on the smart card) with Subject Alternative Name (SAN) extension principal name: email@example.com
Our vcenter is authenticating against an other Microsoft AD, the UPN there is : firstname.lastname@example.org
So it will not work, because in documentation vcenter there is the requirement named:
A User Principal Name (UPN) must correspond to an Active Directory account in the Subject Alternative Name (SAN) extension.
Have you gone through this vmware document to understand the prerequisites and configuration to enable smart card authentication..