On 2 Aug 2013, at 20:02, Rizzo, Christopher wrote:
> The Apache HTTP server is rejecting the request (with "400 Bad Request") due
> to this Hostname value in the header before a registered IPP Apache module
> even sees it.
A quick check confirms what you say.
> Is it possible to write a hook
An Apple AirPrint Internet Printing Protocol (IPP) client (from either iOS or
Mac OS) can send requests over IPv6 with an IPvFuture format (RFC 3986) IPv6
address in the Hostname HTTP Host Header value. The Hostname is of the form
[v1:+en0]. Where en0 is the interface of the requesting Mac.