2^32 pings in 10 hours is ~120kHz. So I imagine that the complaining companies were the ones assigned /8 blocks (IBM, Apple, Ford etc.). They probably noticed t

2^32 pings in 10 hours is ~120kHz. So I imagine that the complaining companies were the ones assigned /8 blocks (IBM, Apple, Ford etc.). They probably noticed the 500 pings/second aimed at their address space.