I'd note that: "what prefixes?" isn't answered here... like: "what is the thing on your network which is being attacked?"
On Mon, Dec 9, 2019 at 3:08 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
