You can use flex-option for that. See
https://kea.readthedocs.io/en/kea-1.7.9/arm/hooks.html#flex-option-flexible-option-for-option-value-settings
The expression you are looking for should be very simple: "pkt4.giaddr"
if you want to use the giaddr field or "pkt.src" if you want to use
source IP address of the packet.
Tomek
On 17/07/2020 08:08, Anatoliy Kushner wrote:
> Hi , if we have network with multiply gw(relay) is it possible for kea
> return router (option 3) field based on giaddr ?
>
> should be something like this
>
> "option-data":[
> {
> "name": "routers",
> "data": relay.ip-address
> },
> ]
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