kea/doc/examples/kea4/shared-network.json

{
    "Dhcp4": {
        "interfaces-config": {
            "interfaces": [ "eth0" ]
        },

        "lease-database": {
            "type": "memfile",
            "lfc-interval": 3600
        },

        "shared-networks": [
        {
            "interface": "eth1",
            "match-client-id": false,
            "name": "frog",
            "option-data": [ ],
            "rebind-timer": 150,
            "relay": {
                "ip-address": "0.0.0.0"
            },
            "renew-timer": 100,
            "reservation-mode": "all",
            "subnet4": [
                {
                    "4o6-interface": "",
                    "4o6-interface-id": "",
                    "4o6-subnet": "",
                    "id": 1,
                    "match-client-id": true,
                    "next-server": "0.0.0.0",
                    "option-data": [ ],
                    "pools": [ ],
                    "rebind-timer": 20,
                    "relay": {
                        "ip-address": "0.0.0.0"
                    },
                    "renew-timer": 10,
                    "reservation-mode": "all",
                    "subnet": "10.0.0.0/8",
                    "valid-lifetime": 30
                },
                {
                    "4o6-interface": "",
                    "4o6-interface-id": "",
                    "4o6-subnet": "",
                    "id": 2,
                    "match-client-id": true,
                    "next-server": "0.0.0.0",
                    "option-data": [ ],
                    "pools": [ ],
                    "rebind-timer": 20,
                    "relay": {
                        "ip-address": "0.0.0.0"
                    },
                    "renew-timer": 10,
                    "reservation-mode": "all",
                    "subnet": "192.0.2.0/24",
                    "valid-lifetime": 30
                }
            ],
            "valid-lifetime": 200
        } ], // end of shared-networks

        // This is regular subnet. It's not part of any shared-network.
        "subnet4": [
            {
                "pools": [ { "pool":  "192.0.3.1 - 192.0.3.200" } ],
                "subnet": "192.0.3.0/24",
                "interface": "eth0"
            }
        ]
        
    } // end of Dhcp4
}