Static IP via Option 82 - methodology

[Adam Moffett]

>> Is this the way to do it?
>>
>> ------------------------
>>
>> host 10-24-24-9 { option agent.circuit-id = "1.21.1.4/Ethernet9";
>> fixed-address 10.24.24.9; } # static by option 82 (with host line)?
>>
>> ------------------------
>
> Close.
>
> host 10-24-24-9 {
>    host-identifier option agent.circuit-id "1.21.1.4/Ethernet9";
>    fixed-address 10.24.24.9;
> }
How new is this feature?  I could really make use of this.