anchor.diff:          (assertInt "SuppressPrefixLength")
           (assertRange "SuppressPrefixLength" 0 128)
           (assertValueOneOf "Type" ["blackhole" "unreachable" "prohibit"])
  +        (assertRange "SuppressInterfaceGroup" 0 2147483647)
         ];
   
         sectionRoute = checkUnitConfig "Route" [
  
positive.code:           "User"
            "SuppressPrefixLength"
            "Type"
          ])
          (assertInt "TypeOfService")
          (assertRange "TypeOfService" 0 255)
  
negative.code:         (assertValueOneOf "WithoutRA" ["no" "solicit" "information-request"])
          (assertRange "SendOption" 1 65536)
          (assertInt "IAID")
          (assertValueOneOf "UseDelegatedPrefix" boolValues)
        ];
  
        sectionDHCPPrefixDelegation = checkUnitConfig "DHCPPrefixDelegation" [
  