It seems the station connected to the AP and get the IP 10.34.46.6. But the station still leave the connection from AP. I run your example and the station not auto leave the AP. Could you please try other station.

It seems TCP enter in TIME-WAIT state, it neend about2 miniutes to free the resources. And SO_LINGER socket option you set not take effect. You need first enable CONFIG_LWIP_SO_LINGER by menuconfig.

我们有 ECDH,DHE 和 RSA 的对比数据，时间消耗上 RSA < DHE < ECDH ，所以你看下服务器是否支持 RSA-WITH-AES，可以在客户端专门设置特定的加密套件，修改该配置，比如设置 TLS_RSA_WITH_AES_128_GCM_SHA256，可以在如下文件 https://github.com/espressif/esp-idf/blob/master/components/mbedtls/port/include/mbedtls/esp_config.h#L2959 加一句 #define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS...

Yes, you can set skip_cert_common_name_check(https://github.com/espressif/esp-mqtt/b ... ent.h#L260) to true to skip check server hostname in CA.

Your AP IP address is class A, and the netmask can't be 255.255.255.0, you can change to

You can refer to https://github.com/espressif/esp-protoc ... t/examples.

1.3s 的时间算正常。目前日志中没看到握手所使用的加密套件，如果用了椭圆算法就会比较久。你可以参考函数 mbedtls_ssl_get_ciphersuite 打印加密套件（这个需要在握手成功后），看日志是没有套件打印。

Hi Sorry that i have not considered the IP address of PC is not fixed. But i think this is not a problem. You can use mdns or other solution to let the AP to find the PC that support OTA. For mdns, i think you can check the mdns components. And for other solutions, i think you can create a TCP serve...

Hi,
ESP32 as http server and PC as http client to upload the firmware to ESP32 and flash firmware to flash is workable. But it may be unfriendly for you to implement it. I think you can use ESP32 as AP and HTTP client, your PC as HTTP server, it will be easy for you.

The source port is allocated in https://github.com/espressif/esp-lwip/blob/705dd71d46779bf29653f1f1d7b1af5a09fb2aa7/src/core/tcp.c#L1124, not in esp_http_client component, it is in low layer lwip. It is difficult to get the source port in esp_http_client layer. Because you have no API to get socket ...