[zeromq-dev] [JZMQ] JZMQ and IPV6 support

[Steven McCoy]

On 10 January 2013 04:25, Sabri Skhiri <sabri.skhiri at gmail.com> wrote:

> We need to support an IPV6 environment and we currently use JZMQ. By
> googling IPV6 Support and ZMQ I found the Steven McCoy's patch reference (
> http://lists.zeromq.org/pipermail/zeromq-dev/2011-August/012834.html).
>
> Basically it says that we just need to setup a socket option to false (*
> ZMQ_IPV4ONLY)*.
>

Correct, the only thing missing which is something I recently discovered is
called "Happy Eyeballs" - RFC6555.

http://tools.ietf.org/rfc/rfc6555.txt

I found this on a libcurl blog and as they haven't implemented it either:
it's a set of requirements for dual-stack environments to manage situations
when IPv6 connectivity fails and IPv4 is possible but with minimal delay
presented to the user.  I'm not aware of an actual algorithm that does
implement the requirements though.

By that description it may not to be too useful for ZeroMQ either.

-- 
Steve-o
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