pfSense

The following is allowed by the webgui in a static mapping: Client Identifier: 32" Sony Trinitron

That creates a configuration that cannot be loaded:

host s_lan_0 {
        hardware ethernet 01:02:03:04:05:06;
        option dhcp-client-identifier "32" Sony Trinitron";
    option host-name "32-Sony";
    option domain-name-servers 172.25.228.1;
}