For me it was already a common practice to disable IPv6 on ESXi hosts, but until recently I did not realize that vCenter Server can also benefit from it. For vCenter Server on Windows, you reconfigure the Windows network configuration. But how do you disable IPv6 on the vCSA?
I recently found that a vCSA 6.0 has at least three options to reconfigure the network settings. But only one option enables you to disable IPv6.
Using a web browser you can log in to the vCSA Web console by entering URL: https: //<vCSA hostname or IP address>:5480
From there go to Networking, under Networking Interfaces, choose Edit to open the “Edit IP Configuration” window. Here you can configure IPv4 and IPv6 and disable IPv4, but no option to disable IPv6.