TCP and UDP Ports for Management Access
vCenter Server, ESXi hosts, and other network components are accessed using predetermined TCP and UDP ports. If you manage network components from outside a firewall, you might be required to reconfigure the firewall to allow access on the appropriate ports.
TCP and UDP Ports lists TCP and UDP ports, and the purpose and the type of each.
TCP and UDP Ports | | |
|---|
80 | HTTP access The default non-secure TCP Web port typically used in conjunction with port 443 as a front end for access to ESXi networks from the Web. Port 80 redirects traffic to an HTTPS landing page (port 443). WS-Management | Incoming TCP |
123 | NTP Client | Outgoing UDP |
427 | The CIM client uses the Service Location Protocol, version 2 (SLPv2) to find CIM servers. | Incoming and outgoing UDP |
443 | HTTPS access vCenter Server access to ESXi hosts Default SSL Web port vSphere Client access to vCenter Server vSphere Client access to ESXi hosts WS-Management vSphere Client access to vSphere Update Manager vSphere Converter access to vCenter Server | Incoming TCP |
902 | Host access to other hosts for migration and provisioning Authentication traffic for ESXi and remote console traffic (xinetd/vmware-authd) vSphere Client access to virtual machine consoles (UDP) Status update (heartbeat) connection fromESXi to vCenter Server | Incoming TCP, outgoing UDP |
903 | Remote console traffic generated by user access to virtual machines on a specific ESXi host. | Incoming TCP |
2049 | Transactions from NFS storage devices This port is used on the VMkernel interface. | Incoming and outgoing TCP |
2050–2250 | Traffic between ESXi hosts for VMware High Availability (HA) and EMC Autostart Manager | Outgoing TCP, incoming and outgoing UDP |
3260 | Transactions to iSCSI storage devices This port is used on the VMkernel interface. | Outgoing TCP |
5900-5964 | RFB protocol, which is used by management tools such as VNC | Incoming and outgoing TCP |
5989 | CIM XML transactions over HTTPS | Incoming and outgoing TCP |
8000 | Requests from vMotion | Incoming and outgoing TCP |
8042–8045 | Traffic between ESXi hosts for HA and EMC Autostart Manager | Outgoing TCP, incoming and outgoing UDP |
8100, 8200 | Traffic between ESXi hosts for VMware Fault Tolerance | Outgoing TCP, incoming and outgoing UDP |
In addition to the TCP and UDP ports, you can configure other ports depending on your needs. You can use vSphere Client to open ports for supported services such as NFS.
Life is something that no one can teach you. You have to learn it.
Follow me on
Comments are closed.