Bug #74699 [Nab->ReO]: Missing range for FILTER_FLAG_NO_RES_RANGE

Edit report at https://bugs.php.net/bug.php?id=74699&edit=1 ID: 74699 Updated by: brianlmoon@php.net Reported by: brianlmoon@php.net Summary: Missing range for FILTER_FLAG_NO_RES_RANGE -Status: Not a bug +Status: Re-Opened Type: Bug Package: Filter related Operating System: Linux PHP Version: 7.1.5 Assigned To: cmb Block user comment: N Private report: N New Comment: I apologize for mixing up those ranges. Nevertheless, the 224.0.0.0/4 range is reserved for multicast. "The range of addresses between 224.0.0.0 and 224.0.0.255, inclusive, is reserved for the use of routing protocols and other low-level topology discovery or maintenance protocols, such as gateway discovery and group membership reporting. Multicast routers should not forward any multicast datagram with destination addresses in this range, regardless of its TTL." https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml Previous Comments: ------------------------------------------------------------------------ [2017-06-06 15:40:08] cmb@php.net > Indeed, you're right. No, nonsense. 240.0.0.0/4 is reserved, but 224.0.0.0/4 is not reserved. Therefore the behavior of your test script is expected. ------------------------------------------------------------------------ [2017-06-06 15:36:05] cmb@php.net > Bug https://bugs.php.net/bug.php?id=73653 mistakenly claimed > that RFC 6890 does not list this as a reserved block. You will > find it on page 12 of that RFC. Indeed, you're right. ------------------------------------------------------------------------ [2017-06-05 20:44:39] brianlmoon@php.net Description: ------------ The patch applied for https://bugs.php.net/bug.php?id=72972 removed the 240.0.0.0/4 block from the reserved list. RFC 6890 [https://tools.ietf.org/html/rfc6890] calls out 240.0.0.0/4 as a "Reserved" block. Bug https://bugs.php.net/bug.php?id=73653 mistakenly claimed that RFC 6890 does not list this as a reserved block. You will find it on page 12 of that RFC. Test script: --------------- $return = filter_var("224.0.0.2", FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE); var_dump($return); Expected result: ---------------- bool(false) Actual result: -------------- string(9) "224.0.0.2" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74699&edit=1