Search the VMware Knowledge Base (KB)
View by Article ID

vCenter Server 4.1 network port requirements (1022256)

  • 17 Ratings


This article provides information vCenter Server 4.1 network port requirements.


The vCenter Server system must be able to send data to every managed host and receive data from every vSphere Client.
vCenter Server requires that these ports are open:
Port Description
80 Required for direct HTTP connections. Port 80 redirects requests to HTTPS port 443.  
389 Active Directory Services for the vCenter Server group
443 Listens for connections from the vSphere Client, vSphere Web Access Client, and other SDK clients. 
636 SSL port of the local instance for vCenter Linked Mode. 
902 (UDP) Used to send data to managed hosts. 
902/903 Used by the vSphere Client to display virtual machine consoles. 
5989 (TCP) CIM transaction traffic (Hardware Status)
8080 vCenter Management Webservices HTTP. 
8443 Secure connections for vCenter Management Webservices HTTPS. 
Used to stream inventory object changes to SDK clients. Firewall rules for this port on the vCenter Server can be set to block all, except from and to localhosts if the clients are installed on the same host as the vCenter Server service.

Additional Information

For more information about ESX and vCenter Server required network ports, see the ESX and vCenter Server Installation Guide.

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


  • 17 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.

What can we do to improve this information? (4000 or fewer characters)

Please enter the Captcha code before clicking Submit.
  • 17 Ratings