[zeromq-dev] IPv6

Pieter Hintjens ph at imatix.com
Wed Jan 30 23:02:19 CET 2013

The default is IPv6 disabled (IPV4ONLY set to 1 by default).



On Wed, Jan 30, 2013 at 10:45 PM, Charles Remes <lists at chuckremes.com> wrote:
> On Jan 30, 2013, at 3:24 PM, Pieter Hintjens <ph at imatix.com> wrote:
>> On Wed, Jan 30, 2013 at 8:15 PM, Steven McCoy <steven.mccoy at miru.hk> wrote:
>>>  0mq supports IPv6 for unicast and multicast excepting RFC6555
>>> optimisations.  By default IPv6 is disabled and can be enabled per socket
>>> with ZMQ_IPV4ONLY.
>> Would it not be more obvious to have an option ZMQ_IPV6 which we set
>> to 1 to enable IPv6?
> IMO, no. Most OSes have been shipping with IPv6 installed since 1999 and enabled since 2003 (I just made those years up).
> I think it would be more surprising to people if they could see on the command line that IPv6 was enabled but libzmq wasn't allow connections to IPv6 endpoints. If they don't want the library to load that feature, they can disable it.
> cr
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