DHCP option 114 for captive portal

[eyaler]

Board

esp32s3

Device Description

lilygo t-energy s3

Hardware Configuration

n/a

Version

latest master (checkout manually)

IDE Name

arduino ide

Operating System

windows 11

Flash frequency

80Mhz

PSRAM enabled

yes

Upload speed

921600

Description

dhcp option 114 has been added to esp-idf 5.4 here, which has recently been merged into arduino-esp32 master. how can i use it in captive portal?

Sketch

i am using the captiveportal example

Debug Message

n/a

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[SuGlider]

This is an IDF new feature. ESP32 Arduino Core doesn't support it directly.
It is possible to replicate the IDF example using an Arduino sketch that calls IDF directly, given that it is included within the Arduino Core Static IDF Libraries.
Another way to implement that feature would be by creating an Arduino as IDF Component project.

For more information about how to use this feature, please check the IDF example at
https://github.com/espressif/esp-idf/blob/master/examples/protocols/http_server/captive_portal/README.md

[lbernstone]

It looks like there is a CONFIG_ option, so this would need to be enabled in the sdkconfig.

[SuGlider]

It looks like there is a CONFIG_ option, so this would need to be enabled in the sdkconfig.

@eyaler - As pointed by @lbernstone, in such case, the only solution would be building the Arduino Project as IDF Component in order to change settings with idf.py menuconfig and then enabling CONFIG_ESP_ENABLE_DHCP_CAPTIVEPORTAL, among other necessary IDF features.

Given that this is not an Arduino matter, I'll close this issue.

[me-no-dev]

We could try and implement this, since it's optional and will require additional calls to DHCP. I've kept the issue in my backlog