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* doc: describe the IPv6 address generation * fixes https://github.com/esphome/issues/issues/5618 * Update network.rst --------- Co-authored-by: H. Árkosi Róbert <robreg@zsurob.hu>
37 lines
1.5 KiB
ReStructuredText
37 lines
1.5 KiB
ReStructuredText
Network component
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=================
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.. seo::
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:description:
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:image: network-wifi.svg
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:keywords: Network, WiFi, WLAN, Ethernet, ESP32
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The network component is a global configuration for all types of
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networks (WiFi, Ethernet).
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.. code-block:: yaml
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# Example configuration
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network:
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enable_ipv6: true
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min_ipv6_addr_count: 2
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Configuration variables:
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------------------------
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- **enable_ipv6** (*Optional*, boolean): Enables IPv6 support. Defaults to ``false``.
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- **min_ipv6_addr_count** (*Optional*, integer): ESPHome considers the network to be connected when it has one IPv4 address and this number of IPv6 addresses. Defaults to ``0`` so as to not hang on boot with networks where IPv6 is not enabled. ``2`` is typically a reasonable value for configurations requiring IPv6.
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.. note::
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The `lwIP <https://savannah.nongnu.org/projects/lwip/>`_ library used for the network component currently only implements IPv6 SLAAC according to `RFC4862 <https://datatracker.ietf.org/doc/rfc4862/>`_. The interface identifier (IID) is directly generated from the device MAC address.
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This has various security and privacy implications decribed in `RFC7721 <https://datatracker.ietf.org/doc/rfc7721/>`_, as this might leak outside of the smart home network and makes the device uniquely identifiable.
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Therefore, the address generation does not comply to `RFC7217 <https://datatracker.ietf.org/doc/rfc7217/>`_.
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See Also
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--------
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- :doc:`/components/wifi`
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- :doc:`/components/ethernet`
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- :ghedit:`Edit`
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