Invalid operation requested: Can not change allowed ip list this ruleset, it is owned by system service.VMware vCenter Server 8.x
This an expected behavior. The "NFS Client" firewall ruleset is owned by system service.
It can confirm that 'Allowed IP configurable' for the nfsClient ruleset is set to false using the below command.
# esxcli network firewall ruleset list
Name Enabled Enable/Disable configurable Allowed IP configurable
--------------------------- ------- --------------------------- -----------------------
nfsClient true false false
For further testing, the firewall can be temporarily unloaded to see if the error in the UI changes. In an SSH to the host run:
esxcli network firewall unloadRemember to reload the firewall after testing by running:
esxcli network firewall load