→ Applies to: VMware ESXi 6.5.0 and above

Step 1. Connect to VMware ESXi CLI (via SSH)

Step 2. Restrict access to a single allowed IP (replace <ip_address_client> with the IP address of the client that can connect to VMware ESXi)

esxcli network firewall ruleset set -r sshServer -e true

esxcli network firewall ruleset allowedip add -r sshServer -i <ip_address_client>

Step 3. Block access to other IP addresses

esxcli network firewall ruleset allowedip remove -r sshServer -i ALL

Step 4. Check firewall rules

esxcli network firewall ruleset allowedip list -r sshServer