Guidelines for Custom Firewall Rules in VMware ESXi
Article ID: 317482
Updated On:
Products
VMware vSphere ESXi
Issue/Introduction
Administrators seeking to manually create or modify custom firewall rules directly within VMware ESXi should note that this configuration is not natively supported. Attempting to manually open specific ports outside of standard configurations requires an authorized, third-party approach.
Environment
VMware vSphere ESXi 7.x
VMware vSphere ESXi 8.x
Resolution
The only supported way to open up additional ports is through a partner-created VIB to modify the ESXi firewall.
In the above sentence, the "partner" is the entity that has suggested that ports are not already open by default for ESXi, be opened.
Please contact the relevant partner/vendor for any assistance with that process.
Additional Information
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