Establish link-local IP address when DHCP is not available

[amontefusco]

As per title, it would be useful, in case devices are deployed in isolated networks, where no infrastructural services are available, that a link-local IP is automatically self-assigned.
Now, it seems that the feature depends on the Arduino code.
So I asked there (esp8266/Arduino#5437), and such feature will be enabled on the following milestones:

https://github.com/esp8266/Arduino/milestone/10
https://github.com/esp8266/Arduino/milestone/8

[andrethomas]

Those are future cores you are referring to, so unless its already included in 2.5.0 you are not going to get this to happen - if it is enabled already on the stage you can self-compile using the 2.5.0 esp8266 arduino core using platform IO. The 2.5.0 core has not been released yet so is still a staged version that may come with its own bugs and limitations.

[Jason2866]

This feature is still not in any core. PR is ready but still needs merge...
esp8266/Arduino#5444

[ascillato2]

Nice idea, but as it is not in any released core, there is nothing we can do from Tasmota side. Thanks for share.

Closing this issue as it has been answered.

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