anchor.diff:            "LinkLocalAddressing"
             "IPv4LLRoute"
             "DefaultRouteOnDevice"
  -          "IPv6Token"
             "LLMNR"
             "MulticastDNS"
             "DNSOverTLS"
  
positive.code:           "Prefix"
            "PreferredLifetimeSec"
            "ValidLifetimeSec"
          ])
          (assertValueOneOf "AddressAutoconfiguration" boolValues)
          (assertValueOneOf "OnLink" boolValues)
  
negative.code:           "RouteAllowList"
            "DHCPv6Client"
            "RouteMetric"
            "UseMTU"
            "UseGateway"
            "UseRoutePrefix"
            "Token"
          ])
          (assertValueOneOf "UseDNS" boolValues)
          (assertValueOneOf "UseDomains" (boolValues ++ ["route"]))
  