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ports/esp32: Add initial support for IPV6. #11111

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ports/esp32: Add initial support for IPV6. #11111

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Carglglz
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If anyone is interested here are the reference esp-idf files:

  • esp-idf/components/esp_event/include/esp_event_legacy.h
  • esp-idf/components/esp_wifi/include/esp_wifi_types.h
  • esp-idf/components/esp_netif/include/esp_netif_types.h
  • esp-idf/examples/common_components/protocol_examples_common/connect.c

Tools to check that the device got a ipv6:

$ avahi-resolve-host-name esp32.local -6
esp32.local fe80::7e9e:bdff:fe3d:9df4

$ ping6 esp32.local
PING6(56=40+8+8 bytes) fe80::8c0:7ee3:70f3:e87e%en0 --> fe80::7e9e:bdff:fe3d:9df4%en0
16 bytes from fe80::7e9e:bdff:fe3d:9df4%en0, icmp_seq=0 hlim=255 time=131.644 ms
16 bytes from fe80::7e9e:bdff:fe3d:9df4%en0, icmp_seq=1 hlim=255 time=131.828 ms
16 bytes from fe80::7e9e:bdff:fe3d:9df4%en0, icmp_seq=2 hlim=255 time=62.806 ms
^C
--- esp32.local ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 62.806/108.759/131.828/32.494 ms

@Carglglz Carglglz mentioned this pull request Mar 26, 2023
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@Carglglz
ports/esp32: Add initial support for IPV6.
367e100 
Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>
@Carglglz Carglglz marked this pull request as ready for review June 30, 2023 01:13
@darconeous darconeous mentioned this pull request Oct 5, 2023
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@dpgeorge
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dpgeorge commented Aug 6, 2024

Since this PR was opened there has been a new .ipconfig() API added to the network module and the network interfaces, to provide support for IPv6. And the rp2 port has IPv6 enabled.

Can you please explain how this PR works with the new .ipconfig() methods? What exactly does this PR do? If we want to enable full IPv6 support on esp32, including configuration support via .ipconfig(), what needs to be done?

@Carglglz
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Can you please explain how this PR works with the new .ipconfig() methods? What exactly does this PR do?

I haven't checked the new .ipconfig() methods so I have no idea, this just automatically gets an IPv6 address on a GOT_IP event.

If we want to enable full IPv6 support on esp32, including configuration support via .ipconfig(), what needs to be done?

No idea and not sure if it is even supported? see https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/lwip.html#ipv6-support

@nullr0ute
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No idea and not sure if it is even supported?

It states there that is is supported, but it's only supported by auto configuration (IE DHCPv6 or SLAAC)

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