anchor.diff:          (assertRange "SendOption" 1 65536)
         ];
   
  +      sectionDHCPv6PrefixDelegation = checkUnitConfig "DHCPv6PrefixDelegation" [
  +        (assertOnlyFields [
  +          "SubnetId"
  +          "Announce"
  +          "Assign"
  +          "Token"
  +        ])
  +        (assertValueOneOf "Announce" boolValues)
  +        (assertValueOneOf "Assign" boolValues)
  +      ];
  +
         sectionDHCPServer = checkUnitConfig "DHCPServer" [
           (assertOnlyFields [
             "PoolOffset"
  
positive.code:         (assertValueOneOf "IPv4ProxyARP" boolValues)
          (assertValueOneOf "IPv6ProxyNDP" boolValues)
          (assertValueOneOf "IPv6PrefixDelegation" ["static" "dhcpv6" "yes" "false"])
          (assertByteFormat "IPv6MTUBytes")
          (assertValueOneOf "ActiveSlave" boolValues)
          (assertValueOneOf "PrimarySlave" boolValues)
  
negative.code:           "IPv6ProxyNDP"
            "IPv6ProxyNDPAddress"
            "IPv6PrefixDelegation"
            "DHCPv6PrefixDelegation"
            "IPv6MTUBytes"
            "Bridge"
            "Bond"
  