see also: https://en.wikipedia.org/wiki/Smurf_attack
On Mon, Dec 9, 2019 at 12:09 PM ahmed.dala...@hrins.net < ahmed.dala...@hrins.net> wrote: > Dear All, > > My network is being flooded with UDP packets, Denial of Service attack, > soucing from Cloud flare and Google IP Addresses, with 200-300 mbps minimum > traffic, the destination in my network are IP prefixes that is currnetly > not used but still getting traffic with high volume. > The traffic is being generated with high intervals between 10-30 Minutes > for each time, maxing to 800 mbps > When reached out cloudflare support, they mentioned that there services > are running on Nat so they can’t pin out which server is attacking based on > ip address alone, as a single IP has more than 5000 server behind it, > providing 1 source IP and UDP source port, didn’t help either > Any suggestions? > > Regards, > Ahmed Dala Ali