The VMware vCenter Server system must be able to send data to every managed host and receive data from every vSphere Client. To enable migration and provisioning activities between managed hosts, the source and destination hosts must be able to receive data from each other.

For information about ports required for the vCenter Server Appliance, see Required Ports for the vCenter Server Appliance.

VMware uses designated ports for communication. Additionally, the managed hosts monitor designated ports for data from the vCenter Server system. If a firewall exists between any of these elements and Windows firewall service is in use, the installer opens the ports during the installation. For custom firewalls, you must manually open the required ports. If you have a firewall between two managed hosts and you want to perform source or target activities, such as migration or cloning, you must configure a means for the managed hosts to receive data.

Note

In Microsoft Windows Server 2008, a firewall is enabled by default.

Ports Required for Communication Between Components

Port

Description

80

vCenter Server requires port 80 for direct HTTP connections. Port 80 redirects requests to HTTPS port 443. This redirection is useful if you accidentally use http://server instead of https://server.

If you use a custom Microsoft SQL database (not the bundled SQL Server 2008 database) that is stored on the same host machine as the vCenter Server, port 80 is used by the SQL Reporting Service. When you install vCenter Server, the installer will prompt you to change the HTTP port for vCenter Server. Change the vCenter Server HTTP port to a custom value to ensure a successful installation.

Microsoft Internet Information Services (IIS) also use port 80. See Conflict Between vCenter Server and IIS for Port 80.

389

This port must be open on the local and all remote instances of vCenter Server. This is the LDAP port number for the Directory Services for the vCenter Server group. The vCenter Server system needs to bind to port 389, even if you are not joining this vCenter Server instance to a Linked Mode group. If another service is running on this port, it might be preferable to remove it or change its port to a different port. You can run the LDAP service on any port from 1025 through 65535.

If this instance is serving as the Microsoft Windows Active Directory, change the port number from 389 to an available port from 1025 through 65535.

443

The default port that the vCenter Server system uses to listen for connections from the vSphere Client. To enable the vCenter Server system to receive data from the vSphere Client, open port 443 in the firewall.

The vCenter Server system also uses port 443 to monitor data transfer from SDK clients.

If you use another port number for HTTPS, you must use ip-address:port when you log in to the vCenter Server system.

636

For vCenter Server Linked Mode, this is the SSL port of the local instance. If another service is running on this port, it might be preferable to remove it or change its port to a different port. You can run the SSL service on any port from 1025 through 65535.

902

The default port that the vCenter Server system uses to send data to managed hosts. Managed hosts also send a regular heartbeat over UDP port 902 to the vCenter Server system. This port must not be blocked by firewalls between the server and the hosts or between hosts.

903

Port 903 must not be blocked between the vSphere Client and the hosts. The vSphere Client uses this ports to display virtual machine consoles.

8080

Web Services HTTP. Used for the VMware VirtualCenter Management Web Services.

8443

Web Services HTTPS. Used for the VMware VirtualCenter Management Web Services.

60099

Web Service change service notification port

6501

Auto Deploy service

6502

Auto Deploy management

7005

vCenter Single Sign On

7009

vCenter Single Sign On

7080

vCenter Single Sign On

7444

vCenter Single Sign On HTTPS

9443

vSphere Web Client HTTPS

9090

vSphere Web Client HTTP

10080

vCenter Inventory Service HTTP

10443

vCenter Inventory Service HTTPS

10109

vCenter Inventory Service Management

10111

vCenter Inventory Service Linked Mode Communication

To have the vCenter Server system use a different port to receive vSphere Client data, see the vCenter Server and Host Management documentation.

For a discussion of firewall configuration, see the vSphere Security documentation.