{
  "ietf-dots-data-channel:capabilities": {
    "address-family": ["ipv4", "ipv6"],
    "forwarding-actions": ["drop", "accept"],
    "rate-limit": true,
    "transport-protocols": [1, 6, 17, 58],
    "ipv4": {
      "length": true,
      "protocol": true,
      "destination-prefix": true,
      "source-prefix": true,
      "fragment": true
    },
    "ipv6": {
      "length": true,
      "protocol": true,
      "destination-prefix": true,
      "source-prefix": true,
      "fragment": true
    },
    "tcp": {
      "flags-bitmask": true,
      "source-port": true,
      "destination-port": true,
      "port-range": true
    },
    "udp": {
      "length": true,
      "source-port": true,
      "destination-port": true,
      "port-range": true
    },
    "icmp": {
      "type": true,
      "code": true
    }
  }
}