ping example for esp-idf.
This project pings own gateway or www.espressif.com.
ICMP Echo document is here.
esp-idf v4.4/v5.0.
git clone https://github.com/nopnop2002/esp-idf-ping
cd esp-idf-ping
idf.py set-target {esp32/esp32s2/esp32s3/esp32c3/esp32c2}
idf.py menuconfig
idf.py flash monitor
Target is www.espressif.com