Re: [lwip-devel] Single socket to handle IPv4 and IPv6 traffic

[Ivan Delamer]

Hi Rahul,

This is not possible at the moment and I think it would be nice to have 
in some cases.

Although I'm not sure about all implications and if it is possible. For 
example, we need to know for an incoming packet if it was received on 
IPv4 or IPv6 to respond using the same protocol. I'm not sure this is 
possible at the moment.

I will add a task to investigate it when I have more time.

For now, we'll have to open 2 netconns. It may be possible using socket 
API but again I'm not 100% sure. I don't generally use sockets just 
netconns.

Cheers
Ivan


> Date: Wed, 5 Nov 2014 10:30:45 +0530
> From: Rahul Gundecha <address@hidden>
> To: lwip-devel <address@hidden>
> Subject: [lwip-devel] Single socket to handle IPv4 and IPv6 traffic
> Message-ID:
>         <address@hidden>
> Content-Type: text/plain; charset="utf-8"
>
> Hi all,
>
> Is there a way by which we can have single socket able to handle both 
> IPv4
> and IPv6 UDP traffic for a specific port?
> I was looking to use a UDP socket to handle both IPv4 and IPv6 
> traffic.
> However from src/core/udp.c, it seems that such case is not handled.
> Is there plan to handle such case or am I missing something.
>
> Thanks,
> Rahul