[zeromq-dev] Udp on Travis errors?

Arnaud Loonstra arnaud at sphaero.org
Thu Jul 16 12:24:18 CEST 2020

On 16-07-2020 11:16, Arnaud Loonstra wrote:
> On 16-07-2020 10:56, Luca Boccassi wrote:
>> On Thu, 2020-07-16 at 10:33 +0200, Arnaud Loonstra wrote:
>> I think the problem is broadcast, rather than UDP. UDP should work fine
>> on Travis. That test will just skip if broadcast is not available.
>> Regarding IPv6, only the very old images support it (check libzmq) - so
>> any test should check first if it works, and skip if not.
> Thanks for that Luca, documentation about this on travis is scarce.
> I found the is_ipv6_available method in libzmq. I'll see if I can use 
> that in czmq.
> On ipv6 there is no broadcast, only multicast. As there's not much to 
> find on this it could be the case that it should just work and so I'm 
> doing something wrong perhaps.
> Rg,
> Arnaud

It seems this is an issue with Travis. The ipv4 tests work fine. Ipv6 is 
broken or not supported at all. Only on some LXD containers with 
specific architectures:


I'm going to try Appveyor.



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