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


From: Ivan Delamer
Subject: Re: [lwip-devel] Single socket to handle IPv4 and IPv6 traffic
Date: Wed, 05 Nov 2014 10:19:25 -0700

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




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