[zeromq-dev] ZBeacon multiple interface support

[Pieter Hintjens]

Once you have multiple interfaces, you need to think about bridging
traffic between them, if your intention is to create a single ZRE
network. It goes beyond beaconing therefore. I think you need one
instance of zbeacon for each interface, and then explicit code to
bridge the two TCP networks. I assume it gets complex when you have
multiple devices acting as bridges.

Since it's a problem we never faced yet, nor had to solve, it remains a theory.

On Thu, Apr 9, 2015 at 4:03 PM, Arnaud Loonstra <arnaud at sphaero.org> wrote:
> Hi All,
>
> I was refactoring the ZBeacon code in Pyre to start thinking about
> using it on multiple interfaces. Imagine a simple laptop with a wireless
> and wired NIC.
>
> ZBeacon now tries the first interface it can get its hands on or it
> tries INADDR_ANY.
>
> To support multiple interfaces it would need to transmit the ipaddress
> of the interface it is broadcasting on. Then Zyre would also need to
> support multiple endpoint addresses of nodes.
>
> I can imagine having the zyre_node class start zbeacon instances on
> every interface it finds. Or have zbeacon itself open sockets on every
> interface. I don't know what would be most suitable approach? Especially
> with networks being plugged in and out...
>
> Has anybody already thought this true? Any suggestions?
>
> Rg,
>
> Arnaud
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