Best way to get foreign ISPs to shut down DDoS reflectors?

Compton, Rich A Rich.Compton at
Thu Apr 23 22:12:57 UTC 2020

Good luck with that.  😊  As Damian Menscher has presented at NANOG, even if we do an amazing job and shut down 99% of all DDoS reflectors, there will still be enough bandwidth to generate terabit size attacks.
I think we need to instead collectively focus on stopping the spoofed traffic that allows these attacks to be generated in the first place.

From: NANOG Email List <nanog-bounces at> on behalf of Bottiger <bottiger10 at>
Date: Thursday, April 23, 2020 at 3:32 PM
To: Siyuan Miao <aveline at>
Cc: NANOG list <nanog at>
Subject: Re: Best way to get foreign ISPs to shut down DDoS reflectors?

We are unable to upgrade our bandwidth in those areas. There are no providers within our budget there at the moment. Surely there must be some way to get them to respond.

On Thu, Apr 23, 2020 at 2:23 PM Siyuan Miao <aveline at<mailto:aveline at>> wrote:
It won't work.

Get a good DDoS protection and forget about it.

On Fri, Apr 24, 2020 at 5:17 AM Bottiger <bottiger10 at<mailto:bottiger10 at>> wrote:
Is there a guide on how to get foreign ISPs to shut down reflectors used in DDoS attacks?

I've tried sending emails listed under abuse contacts for their regional registries. Either there is none listed, the email is full, email does not exist, or they do not reply. Same results when sending to whatever other email they have listed.

Example Networks:

China Telecom
Korea Telecom
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