[zeromq-dev] Zyre ipaddress in Hello message

[Pieter Hintjens]

Yes. This is the way to go. I think we need a lower-level zsys method
that returns a zlist of interfaces with some properties (wifi, lan,
ipv4/ipv6 etc.).

On Thu, Jan 2, 2014 at 7:12 PM, Lindley French <lindleyf at gmail.com> wrote:
> There's another advantage to doing one socket per address---it makes it easy
> to pick and choose which interfaces you really want to listen/beacon on. On
> a phone, for instance, it might make a lot of sense to beacon on wlan0
> (wifi) and bnep0 (bluetooth), but less sense to beacon on rmnet0 (4G).
> Alternatively, if you are using a network simulator like CORE or EMANE, you
> might need to make sure you *only* beacon over a particular interface.
>
> How these interfaces are specified is, of course, a difficult problem to get
> right. Nonetheless, the ability to be selective is useful.
>
>
> On Thu, Jan 2, 2014 at 8:51 AM, Pieter Hintjens <ph at imatix.com> wrote:
>>
>> On Thu, Jan 2, 2014 at 1:06 PM, Arnaud Loonstra <arnaud at sphaero.org>
>> wrote:
>>
>> > IMHO the easiest way to solve this is to get the ipaddress through the
>> > 0mq socket. Pieter you said this was available in 0mq4+. Are there any
>> > examples or docs?
>>
>> It's not yet available at the libzmq API, only internally. I'm not
>> happy making the ZRE protocol depend on a specific version of ZeroMQ
>> either.
>>
>> The beacon isn't a problem afaics: it is trivial to get the sender
>> address for a beacon and we already do that. I don't see there's any
>> requirement for endpoints except tcp:// at the moment. So a beacon
>> with port number is fine.
>>
>> I think we can get the socket interface address for each received
>> beacon, and deliver that as a 3rd frame.
>>
>> -Pieter
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>
>
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