Here’s a fun thought experiment. UDP packets can be sent with an arbitrary source IP and port, so you can send a packet to one server, and could aim the response at another server. What happens if that response triggers another response? What if you could craft a packet that continues that cycle endlessly? That is essentially the idea behind Loop DoS (Denial of Service).
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/22/this-week-in-security-loop-dos-flipper-responds-and-more/