Recently I was struggling getting vSphere Update Manager to work properly across firewalls. Information for the required firewall ports that need to be opened can be obtained from the following VMware KB articles:
http://kb.vmware.com/kb/1004543
http://kb.vmware.com/kb/1012382
During troubleshooting, some information got me confused and as the saying goes, “a picture is worth a thousand words.”, I decided to craft a picture from all this information.
Table 1 – vSphere Update Manager network port requirements.
| Port | Protocol | Source | Target |
| 80 | TCP | vSphere Update Manager | www.vmware.com and xml.shavlik.com |
| 80 | TCP | ESXi Host | vSphere Update Manager |
| 80 | TCP | vSphere Update Manager | vCenter Server |
| 80 | TCP | vSphere Update Manager | ESXi Host |
| 443 | TCP | vSphere Update Manager | www.vmware.com and xml.shavlik.com |
| 443 | TCP | ESXi Host | vSphere Update Manager |
| 443 | TCP | vCenter Server | vSphere Update Manager |
| 902 | TCP | vSphere Update Manager | ESXi Host |
| 1433 | TCP | vSphere Update Manager | Microsoft SQL Server |
| 1521 | TCP | vSphere Update Manager | Oracle Database Server |
| 8084 | TCP | vCenter Server | vSphere Update Manager |
| 9084 | TCP | ESXi Host | vSphere Update Manager |
| 9087 | TCP | vCenter Server | vSphere Update Manager |
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