IPv6 Support?

The Internet Protocol version 6 was designed 20 years ago. Unfortunately many devices (including virtually all IoT devices) still do not support it. IPv4 addresses are getting extremely scarce these days and many ISPs no longer allocate public IPv4 addresses for their customers (Carrier grade NAT) which is already causing connectivity issues for many people including myself. Therefore we should all strive for 100% IPv6 support.

Would it be possible to implement IPv6 on Sonoff devices or is there anything in particular that stands in the way?

Last I checked, the upstream libraries didn't support IPv6 yet: esp8266/Arduino#638 I found this: espressif/arduino-esp32#1261, but this doesn't apply to the ESP8266. And it seems to be in active development and not completely ready for release. When this is finished (and merged into esp8266/Arduino), IPv6 can be used in Tasmota.

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

This issue will be auto-closed because there hasn't been any activity for a few months. Feel free to open a new one if you still experience this problem.

Check again https://github.com/esp8266/Arduino/issues/638

Ardui core now supports IPv6 : https://github.com/esp8266/Arduino/pull/5136

can we re-open thins one ?

can we re-open thins one ?

No because it is already implemented in Tasmota. You have to compile by yourself enabling IPV6 support in platformio.ini

If you need further assistant, please, do not hesitate on asking on the Support Chat. Thanks.

Hi @ascillato , thank you for your quick answer. I had a look at platformio.ini and I didn't find a self exaplanatory commented out parameter to enable it. That would be good if you could tell which one it is?

my bad , it looks like related to this:

; lwIP 1.4
;                            -DPIO_FRAMEWORK_ARDUINO_LWIP_HIGHER_BANDWIDTH
; lwIP 2 - Low Memory
;                            -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
; lwIP 2 - Higher Bandwidth
;                            -DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH
; lwIP 2 - Higher Bandwidth Low Memory no Features
;                            -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY_LOW_FLASH
; lwIP 2 - Higher Bandwidth no Features (Tasmota default)
                            -DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH_LOW_FLASH
; lwIP 2 - Higher Bandwidth IPv6 (use ONLY if you need IPv6, experimental!)
;                            -DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH

yes, exactly.

If you need help on using those, you can use the support chat if you want.

Anyway, as the comment explains, it is experimental because the support is on the Arduino Core. You should use the stage core that have several fixes for that, but still experimental.

Use it, if you really need ipv6 in your local network. ipv4 for a local network is reliable and works for all usecases.

Hello, from the post above I understand that TASMOTA is supporting IPV6 in general. I have already a working platformio-core setup where I can compile TASMOTA with different features with success! But I fail with IPV6 :-/ In platformio.ini I have set: ; lwIP 2 - Higher Bandwidth IPv6 (use ONLY if you need IPv6, experimental!) -DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH

But it fails to work on a NODEMCU V3 board. The serial-log from the device shows: 00:00:00 CFG: aus Flash geladen am F4, zählen 8 00:00:00 QPC: Count 1 00:00:00 Projekt tasmota Tasmota Version 8.5.0.1(tasmota)-2_7_4_1 00:00:00 HTP: Web-Server aktiv bei tasmota_40FABB-6843 mit IP-Adresse (IP unset) 00:00:01 RSL: tele/tasmota_40FABB/INFO1 = {"Module":"Sonoff Basic","Version":"8.5.0.1(tasmota)","FallbackTopic":"cmnd/DVES_40FABB_fb/","GroupTopic":"cmnd/tasmotas/"} 00:00:01 RSL: tele/tasmota_40FABB/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_40FABB-6843","IPAddress":"(IP unset)","IPv6Address":""} 00:00:01 RSL: tele/tasmota_40FABB/INFO3 = {"RestartReason":"Software/System restart"} 00:00:01 RSL: stat/tasmota_40FABB/RESULT = {"POWER":"OFF"} 00:00:01 RSL: stat/tasmota_40FABB/POWER = OFF 00:00:01 RSL: homeassistant/discovery/807D3A40FABB/config = {"ip":"(IP unset)","dn":"Tasmota","fn":["Tasmota",null,null,null,null,null,null,null],"hn":"tasmota_40FABB-6843","mac":"807D3A40FABB","md":"Sonoff Basic","ofln":"Offline","onln":"Online","state":["OFF","ON","TOGGLE","HOLD"],"sw":"8.5.0.1","t":"tasmota_40FABB","ft":"%prefix%/%topic%/","tp":["cmnd","stat","tele"],"rl":[1,0,0,0,0,0,0,0],"swc":[-1,-1,-1,-1,-1,-1,-1,-1],"btn":[1,0,0,0],"so":{"11":0,"13":0,"17":0,"20":0,"30":0,"37":1,"68":0,"73":0,"80":0},"lt_st":0,"ver":1} 00:00:05 RSL: tele/tasmota_40FABB/STATE = {"Time":"1970-01-01T00:00:05","Uptime":"0T00:00:07","UptimeSec":7,"Heap":27,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":8,"MqttCount":0,"POWER":"OFF","Wifi":{"AP":1,"SSId":"lalala.net","BSSId":"FF:FF:FF:FF:FF:FF","Channel":1,"RSSI":100,"Signal":31,"LinkCount":1,"Downtime":"0T00:00:01"}} 00:00:06 QPC: Reset

So somehow IPV6 is mentioned but for it looks like I miss some build-parameters. The documentation on having TASMOTA IP6 is quite weak.

Has anyone compiled TASMOTA with IPV6 and can give dedicated hints what settings in platformio.iniare necessary? I am also curious if ESP-8266 is then turned into a single IPV6 stack or into a dual stack (IP4/IP6) device?

Kai

Hi,

no, you didn't miss a build-parameter. Just did a build on my own including #pragma message to see if #ifdef LWIP_IPV6 is set. And yes, it is but the startup seems to be messed up. Normaly IPv6 was DualStack and you should get at least an IPv4 address but now there is no address at all. I have to admit that this code was implemented in october 2019 and since then I didn't check this part. There where a lot of changes (including ESP32 support) since then. First step is to check https://github.com/esp8266/Arduino/tree/master/libraries/ESP8266WiFi/examples/IPv6/IPv6.ino what is the example code of the arduino framework. If this works it needs some digging into the current tasmota code...can't promise to find some time, soon.

Greetings,

                  Altelch.

LWIP_IPV6 Am 23.09.2020 um 16:24 schrieb freifunkerffm:

Hello, from the post above I understand that TASMOTA is supporting IPV6 in general. I have already a working platformio-core setuo where I can compile TASMOTA with different features with success! But I fail with IPV6 :-/ In platformio.ini I have set: ; lwIP 2 - Higher Bandwidth IPv6 (use ONLY if you need IPv6, experimental!) -DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH

But it fails to work on a NODEMCU V3 board. The serial-log from the device shows: 00:00:00 CFG: aus Flash geladen am F4, zählen 8 00:00:00 QPC: Count 1 00:00:00 Projekt tasmota Tasmota Version 8.5.0.1(tasmota)-2_7_4_1 00:00:00 HTP: Web-Server aktiv bei tasmota_40FABB-6843 mit IP-Adresse (IP unset) 00:00:01 RSL: tele/tasmota_40FABB/INFO1 = {"Module":"Sonoff Basic","Version":"8.5.0.1(tasmota)","FallbackTopic":"cmnd/DVES_40FABB_fb/","GroupTopic":"cmnd/tasmotas/"} 00:00:01 RSL: tele/tasmota_40FABB/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_40FABB-6843","IPAddress":"(IP unset)","IPv6Address":""} 00:00:01 RSL: tele/tasmota_40FABB/INFO3 = {"RestartReason":"Software/System restart"} 00:00:01 RSL: stat/tasmota_40FABB/RESULT = {"POWER":"OFF"} 00:00:01 RSL: stat/tasmota_40FABB/POWER = OFF 00:00:01 RSL: homeassistant/discovery/807D3A40FABB/config = {"ip":"(IP unset)","dn":"Tasmota","fn":["Tasmota",null,null,null,null,null,null,null],"hn":"tasmota_40FABB-6843","mac":"807D3A40FABB","md":"Sonoff Basic","ofln":"Offline","onln":"Online","state":["OFF","ON","TOGGLE","HOLD"],"sw":"8.5.0.1","t":"tasmota_40FABB","ft":"%prefix%/%topic%/","tp":["cmnd","stat","tele"],"rl":[1,0,0,0,0,0,0,0],"swc":[-1,-1,-1,-1,-1,-1,-1,-1],"btn":[1,0,0,0],"so":{"11":0,"13":0,"17":0,"20":0,"30":0,"37":1,"68":0,"73":0,"80":0},"lt_st":0,"ver":1} 00:00:05 RSL: tele/tasmota_40FABB/STATE = {"Time":"1970-01-01T00:00:05","Uptime":"0T00:00:07","UptimeSec":7,"Heap":27,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":8,"MqttCount":0,"POWER":"OFF","Wifi":{"AP":1,"SSId":"lalala.net","BSSId":"FF:FF:FF:FF:FF:FF","Channel":1,"RSSI":100,"Signal":31,"LinkCount":1,"Downtime":"0T00:00:01"}} 00:00:06 QPC: Reset

So somehow IPV6 is mentioned but for it looks like I miss some buld-parameters. The documentation on having TASMOTA IP6 is quite weak.

Has anyone compiled TASMOTA with IPV6 and can give dedicated hints what settings in platformio.iniare necessary? I am also curious if ESP-8266 is then turned into a single IPV6 stack or into a dual stack (IP4/IP6) device?

Kai

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/arendst/Tasmota/issues/2521#issuecomment-697437859, or unsubscribe https://github.com/notifications/unsubscribe-auth/AATUA4NFDCZP2AT6KTXXN33SHIAIPANCNFSM4E33KYZQ.

That example will work ;-)

Ok,

I'll trust you ;-) Then I need to find what's got messed up and when...

Thx,

                Altelch.

Am 23.09.2020 um 18:46 schrieb david gauchard:

That example will work ;-)

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/arendst/Tasmota/issues/2521#issuecomment-697675022, or unsubscribe https://github.com/notifications/unsubscribe-auth/AATUA4JWALBLLDIZOH6LMXLSHIQ5FANCNFSM4E33KYZQ.

Hi,

IPv6 works with 8.5.0. Somehow platformio.ini isn't evaluated after changing DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH_LOW_FLASH to DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH

Did also put a #pragma message ("IPv6 compile time enabled!") into support_wifi.ino in WifiBegin after #ifdef LWIP_IPv6 to see if this branch is compiled. After a few trials gitpod started to compile the whole project again and this time I got my above message during compile. The firmare works as expected: 00:00:05 WIF: Got IPv6 global address xxxx:xxxx:150:5ecf:7fff:fe88:xxxx

Greetings,

       Heiko.

Hello Heiko, I tested it again with a freschly checked out TASMOTA : git clone https://github.com/arendst/Tasmota.git I changed platformio.ini like that: ;-DPIO_FRAMEWORK_ARDUINO_LWIP3_HIGHER_BANDWIDTH_LOW_FLASH -DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH and used no user_config_override.h But compiled it with platformio and not with gitpod. I also added your pragma message in the support_wifi.ino. That is visible in the build log: Retrieved .pio/build/tasmota/libeec/ESP8266SdFat/FatLib/FatFileSFN.cpp.o' from cache /home/k/platformio-coreIP6/TasmotaIPV6/tasmota/support_wifi.ino: In function 'void WifiBegin(uint8_t, uint8_t)': /home/k/platformio-coreIP6/TasmotaIPV6/tasmota/support_wifi.ino:214:52: note: #pragma message: IPv6 compile time enabled! #pragma message ("IPv6 compile time enabled!") ^ Retrieved .pio/build/tasmota/libeec/ESP8266SdFat/FatLib/FatVolume.cpp.o' from cache

I pushed the bin via tasmotizer to the NodeMCU V3 board and got: 00:00:00 CFG: aus Flash geladen am F9, zählen 3 00:00:00 QPC: Count 1 00:00:00 Projekt tasmota Tasmota Version 8.5.0.1(tasmota)-2_7_4_1 00:00:00 HTP: Web-Server aktiv bei tasmota_40FABB-6843 mit IP-Adresse (IP unset) 00:00:01 RSL: tele/tasmota_40FABB/INFO1 = {"Module":"Sonoff Basic","Version":"8.5.0.1(tasmota)","FallbackTopic":"cmnd/DVES_40FABB_fb/","GroupTopic":"cmnd/tasmotas/"} 00:00:01 RSL: tele/tasmota_40FABB/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_40FABB-6843","IPAddress":"(IP unset)","IPv6Address":""} 00:00:01 RSL: tele/tasmota_40FABB/INFO3 = {"RestartReason":"External System"} 00:00:01 RSL: stat/tasmota_40FABB/RESULT = {"POWER":"OFF"} 00:00:01 RSL: stat/tasmota_40FABB/POWER = OFF 00:00:01 RSL: homeassistant/discovery/807D3A40FABB/config = {"ip":"(IP unset)","dn":"Tasmota","fn":["Tasmota",null,null,null,null,null,null,null],"hn":"tasmota_40FABB-6843","mac":"807D3A40FABB","md":"Sonoff Basic","ofln":"Offline","onln":"Online","state":["OFF","ON","TOGGLE","HOLD"],"sw":"8.5.0.1","t":"tasmota_40FABB","ft":"%prefix%/%topic%/","tp":["cmnd","stat","tele"],"rl":[1,0,0,0,0,0,0,0],"swc":[-1,-1,-1,-1,-1,-1,-1,-1],"btn":[1,0,0,0],"so":{"11":0,"13":0,"17":0,"20":0,"30":0,"37":1,"68":0,"73":0,"80":0},"lt_st":0,"ver":1} 00:00:05 RSL: tele/tasmota_40FABB/STATE = {"Time":"1970-01-01T00:00:05","Uptime":"0T00:00:07","UptimeSec":7,"Heap":26,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":8,"MqttCount":0,"POWER":"OFF","Wifi":{"AP":1,"SSId":"","BSSId":"FF:FF:FF:FF:FF:FF","Channel":1,"RSSI":100,"Signal":31,"LinkCount":1,"Downtime":"0T00:00:01"}} 00:00:06 QPC: Reset

I noticed a new WLAN named ESP-40FABB I could join and found at 192.168.4.1 a new tasmota device to configure. (no hint for that in the logging) I just changed the WIFI credentials via GUI and got:

00:00:00 CFG: aus Flash geladen am F6, zählen 6 00:00:00 QPC: Count 1 00:00:00 Projekt tasmota Tasmota Version 8.5.0.1(tasmota)-2_7_4_1 00:00:00 HTP: Web-Server aktiv bei tasmota_40FABB-6843 mit IP-Adresse (IP unset) 00:00:01 RSL: tele/tasmota_40FABB/INFO1 = {"Module":"Generic","Version":"8.5.0.1(tasmota)","FallbackTopic":"cmnd/DVES_40FABB_fb/","GroupTopic":"cmnd/tasmotas/"} 00:00:01 RSL: tele/tasmota_40FABB/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_40FABB-6843","IPAddress":"(IP unset)","IPv6Address":""} 00:00:01 RSL: tele/tasmota_40FABB/INFO3 = {"RestartReason":"Software/System restart"} 00:00:01 RSL: homeassistant/discovery/807D3A40FABB/config = {"ip":"(IP unset)","dn":"Tasmota","fn":["Tasmota",null,null,null,null,null,null,null],"hn":"tasmota_40FABB-6843","mac":"807D3A40FABB","md":"Generic","ofln":"Offline","onln":"Online","state":["OFF","ON","TOGGLE","HOLD"],"sw":"8.5.0.1","t":"tasmota_40FABB","ft":"%prefix%/%topic%/","tp":["cmnd","stat","tele"],"rl":[1,0,0,0,0,0,0,0],"swc":[-1,-1,-1,-1,-1,-1,-1,-1],"btn":[0,0,0,0],"so":{"11":0,"13":0,"17":0,"20":0,"30":0,"37":1,"68":0,"73":0,"80":0},"lt_st":0,"ver":1} 00:00:05 RSL: tele/tasmota_40FABB/STATE = {"Time":"1970-01-01T00:00:05","Uptime":"0T00:00:07","UptimeSec":7,"Heap":24,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":20,"MqttCount":0,"Wifi":{"AP":1,"SSId":"lalala.net","BSSId":"FF:FF:FF:FF:FF:FF","Channel":1,"RSSI":100,"Signal":31,"LinkCount":1,"Downtime":"0T00:00:01"}} 00:00:06 QPC: Reset

After this the ESP-40FABB WIFI is not gone, but the ESP8266 detects the W-Lan Network. So for me IPv6 is still not really usable Is there a kind of command list to execute to get some more information about that. I am happy to help, if I can

Kai

Hi all, I gave it another go, this time I compliled the tasmota Development Branch: https://gitpod.io#https://github.com/arendst/Tasmota/tree/development via gitpod. Just changed one line in platformio.ini , I replaced: DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH_LOW_FLASH with DPIO_FRAMEWORK_ARDUINO_LWIP2_IPV6_HIGHER_BANDWIDTH

And compiled a pure tasmota with: "platformio run -e tasmota" Used tasmotizer to flash, and got again something I have already seen:

CFG: Loaded from flash at F8, Count 4 00:00:00 QPC: Count 1 00:00:00 Project tasmota Tasmota Version 8.5.0.1(tasmota)-2_7_4_1 00:00:00 HTP: Web server active on tasmota_40FABB-6843 with IP address (IP unset) 00:00:01 RSL: tele/tasmota_40FABB/INFO1 = {"Module":"Sonoff Basic","Version":"8.5.0.1(tasmota)","FallbackTopic":"cmnd/DVES_40FABB_fb/","GroupTopic":"cmnd/tasmotas/"} 00:00:01 RSL: tele/tasmota_40FABB/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_40FABB-6843","IPAddress":"(IP unset)","IPv6Address":""} 00:00:01 RSL: tele/tasmota_40FABB/INFO3 = {"RestartReason":"External System"}

So sorry I am not able to confirm that IPV6 is working on a TASMOTA device.

Kai

Another year went by and my tasmota devices still has no IPv6 support by default. It is still needed to compile tasmota by hand to enable that feature?

AFAIK, even by compiling with either hand or feet you won't get IPv6 running on Tasmota. It's definitively not designed for it (all internal IP addresses representation are on 4 bytes) And there is not much need to run a home automation system on an IPV6 network.

There are so many places where public ipv4 address is not provided by ISP due to the use of CGNAT, so in those circumstances, ipv6 is too much useful. So many people will get benefited if Tasmota Support ipv6. Especially who are ardent in using Tasmota

Not sure if this link helps anyway https://www.keithh.com/network/ipv6-setup-esp8266/

I run Tasmota on a S31 w/ IPv6 enabled. It works.

I give it an address via SLAAC. I have noted that if the router isn't handing out Router Advertisements, the device will hang for ~2 mins then come up with an IPv4 address only, so look out for that.

Thanks!

Honestly you don't need to fish for NAT or IPv4 shortage reasons to support IPv6. It's the current version of the internet protocol and it is at this point over 20 years old. By not enabling it by default your basically building legacy systems.

So I think this ticket should be reopened. IPv6 support is still not enabled by default. I would rather use something that lacks IPv4 support than something without IPv6.

I would like an IPv6-only option even more than dual stack.

There is no plan for IPv6-only option in Tasmota. Why would you even want to not support IPv4 ?

There is no plan for IPv6-only option in Tasmota. Why would you even want to not support IPv4 ?

Let me rephrase: There is no plan for car only roads. Why would you even want to not support coaches.

IPv4 should be nothing more then a fallback. A widely used one for now. But hopefully things will finally change.

Will there be ipv6 full support? Dual stack, with dhcpv6 and slaac? It's availiable in the esp-idf, so hopefullt soon in tasmota

As Tasmota is designed for internal networks, not the big bad Internet, the "real benefit" of IPv6 would be marginal at best. I certainly have no scarcity of IP addresses within the reserved ranges.

IPv6 has nothing to do with internal networks. If tasmota doesn't support the current version of the internet protocol it is basically legacy software. I really don't get this hostility towards IPv6. There is really no reason to not support it. It's the standard way of communicating between IP capable devices and that since over 25 years! Get your shit together. You're embarrassing yourself.

Not at all "hostility", just explaining why IPv6 is not seen as much of a priority. While I like the concept of getting everything on IPv6, that's not going to happen in the foreseeable future anyway, and has most value when it comes to using the scarce public IP addresses.

Anyway, Tasmota is not managing the IP support, that's happening in the frameworks outside of Tasmota code. It does not help to express your desires here. Of course, if you make it work, a PR could be ... "interesting".

@XenGi please respects the community guidelines.

Now on a pure technical aspect ESP8266 is legacy hardware with limited capabilities and the Espressif SDK is frozen AFAIK (no more updates /maintenance). Investing in IPv6 on ESP8266 sounds like a loss of time (not sure any vendor has ever supported it, may be shelly?)

2 years ago, investing in ESP32 sounded like a loss of time. Even supporting Ethernet didn't looked useful. Now both are here. With ESP32 and more variants coming with more memory and flash, why not? It's up to someone taking the task and proposing one (or probably more PR). So if you are such an IPv6 enthusiast, just embrace that tasks and contribute.