Hi,
i have exactly same that one dest address is pinged from about 20 threads from my more than 20 source-networks and not from selected network card. This causes extrem high load on my system.
https://community.openhab.org/t/openhab-4-0-1-and-network-pingdevice-on-docker-install-results-in-massive-threads/148658
Dis you found a solution to ping only from main network which selected?