There are some legit uses to faking the source of an UDP address. Usually clustering or failover. Can also be useful when you have multiple gateways to the inte

There are some legit uses to faking the source of an UDP address. Usually clustering or failover. Can also be useful when you have multiple gateways to the internet. There is also, always, penetration testing where you legit want to do it to see if the network holds up to it.