IPv6 Support

[owendelong]

Currently the entire ESP8266 implementation is IPv4 monastack. It would be nice to be able to choose (through compile-time directives or other mechanism) IPv4, IPv6, or IPv4v6 dual stack.

The lack of IPv6 support is already proving a hinderance in some environments where I work and I can only imagine that this will get worse as we go forward. The ARIN free pool is down to fewer than 256 /24 prefixes. Less than 65,000 total available IPv4 addresses for all of north america.

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[miky2k]

I suppose that it depend from expressif OS and not from arduino wrapper.

[owendelong]

Perhaps, but I'm betting if the Arduino community as a whole started pushing for this, Espressif would be more likely to listen than to just me. I've also put this forward with them as well.

[igrr]

For the record, they have already released lwIP source code for 1.3.0 SDK.

On Thu, Aug 20, 2015, 05:54 owendelong notifications@github.com wrote:

Perhaps, but I'm betting if the Arduino community as a whole started
pushing for this, Espressif would be more likely to listen than to just me.
I've also put this forward with them as well.

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Reply to this email directly or view it on GitHub
#638 (comment).

[mst78]

There seems to be IPV6 support in the espressif RTOS SDK1.3:
http://bbs.espressif.com/viewtopic.php?t=619#p4444

@igrr: Is it possible to integrate IPV6 now? Do you have any plans of doing it?

[ccoenen]

I'm interested in IPv6 support, as well!

[Toshik]

Any news on IPv6?

[Skeen]

+1 for IPv6

[kaeferfreund]

+1

[igrr]

IPv6 support isn't present in the non-OS SDK, which is used by this project.
RTOS SDK, on the other hand, has IPv6. An Arduino core for the ESP8266/ESP32 based on RTOS SDK will be released as a separate project.

[mst78]

Igrr, do you have any idea when the first version of Arduino core for the ESP8266/ESP32 based on RTOS SDK will be available?
Have you already started working on it?

[igrr]

Yes, i was in fact working on things related to IPv6 support in ESP32 Arduino core yesterday :)
I can't give you any concrete date unfortunately. It's going to be available within next two months, this is somewhat gated by the release of new SDK version.

For now, there is a publicly available ESP32 core by @me-no-dev. It has partial IPv6 support. LwIP stack has support for IPv6, but it is not complete (missing IPv6 support in DNS client, for instance). On the Arduino side of things, IPAddress class in this core also doesn't support IPv6 addresses.

[MyIgel]

@igrr Any updates?

[igrr]

Regarding ipv6 for the 8266 non-OS SDK, I don't have any updates.