Thread: Miscellaneous Hacks - Lowercase a-f in IPv6 Addresses
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Old 15 Jan 2018, 16:03
JamesC70 JamesC70 is offline
Join Date: Jun 2007
Originally Posted by Stingray27 View Post
That RFC is only a recommendation, and conflicts with the full RFC 4291.
The second line of 4291, just below where you can choose text or PDF, says "Updated by: 5952".

If we read the Abstract of 5952, it is written to correct the problems of 4291.

The IETF clearly intends 5952 to supersede 4291. Whether you follow 5952 is your choice (5952 requires all systems to accept a valid IPv6 address if it conforms with 4291) but vBulletin should have been 5952 compliant from the start of its IPv6 support.
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