Any requests from clients and subnets specified here will be ignored. This key can be used to sort out any clients and subnets form being served at all. They will be ignored even if they are specified in a ClientSet.
optional
ignored-clients = "<id>" | ["<id1>","<id2>", … ]<id>
Specifies the MAC or IP address of either a client or an entire subnet, as detailed in Specifying Clients and Subnets.
none - There are no clients blocked by default.
A single client by its MAC address.
ignored-clients = "mac:00-11-22-33-44-55"A single subnet by the adapter‘s MAC address.
ignored-clients = "netif:mac:00-11-22-33-44-55"Several clients and a subnet by MAC address.
ignored-clients = ["mac:00-11-22-33-44-55",
"mac:01-12-23-34-45-56",
"mac:01-23-45-67-89-AB",
"netif:mac:01-11-21-31-41-51"]