Ethernet Example DHCP Issue (IDFGH-14551)

[diplfranzhoepfinger]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

https://github.com/espressif/esp-idf/tree/master/examples/ethernet/basic

ESP-IDF v5.4

Issue:

using 2times W5500

https://gist.github.com/diplfranzhoepfinger/6fc3e9050228a7696de2a1af00b4d7e6

ETH 1 all OK,
ETH 2 only show UP and DOWN, but no DHCP.

tested on 2 totally different Hardware:

• 1 Self made Board,
• 1 M5 Stack with 2 W5500 Modules

so i guess it is a SW Problem.

Thanks,
Franz

[kostaond]

@diplfranzhoepfinger thanks for reporting the issue. There is really a problem, https://github.com/espressif/esp-idf/blob/master/examples/ethernet/basic/main/ethernet_example_main.c#L109.

eth_netif_glues[i] = esp_eth_new_netif_glue(eth_handles[0]);

should be

eth_netif_glues[i] = esp_eth_new_netif_glue(eth_handles[i]);