apps/dhcprelay/src/main/resources/dhcp-relay.json

{
  "apps": {
    "org.onosproject.dhcp-relay" : {
      "dhcprelay" : {
        "dhcpserverConnectPoint": "of:0000000000000002/2",
        "serverip": "172.168.10.2",
        "gatewayip": "192.168.10.254"
      }
    }
  }
}