Port requirements for ESXi (2039095) | VMware KB
kb.vmware.com › s › articleOct 19, 2020 · 1024 (dynamic) TCP/UDP. ESXi Host. Active Directory Server. Bi-directional communication on TCP/UDP ports is required between the ESXi host and the Active Directory Domain Controller (via the netlogond process on the ESXi host). See Active Directory and Active Directory Domain Services Port Requirements. 2049.