RE: automatic rtbh trigger using flow data

[Ryan Hamel <Ryan.Hamel () quadranet com>]

No ISP is in the business of filtering traffic unless the client pays the hefty fee since someone still has to tank the 
attack.

I also don’t think there is destination prefix IP filtering in flowspec, which could seriously cause problems.

From: NANOG <nanog-bounces () nanog org> On Behalf Of Baldur Norddahl
Sent: Saturday, September 01, 2018 5:18 PM
To: nanog () nanog org
Subject: Re: automatic rtbh trigger using flow data


fre. 31. aug. 2018 17.16 skrev Hugo Slabbert <hugo () slabnet com<mailto:hugo () slabnet com>>:


I would love an upstream that accepts flowspec routes to get granular about
drops and to basically push "stateless ACLs" upstream.

_keeps dreaming_


We just need a signal to drop UDP for a prefix. The same as RTBH but only for UDP. This would prevent all volumetric 
attacks without the end user being cut off completely.

Besides from some games, VPN and VoIP, they would have an almost completely normal internet experience. DNS would go 
through the ISP servers and only be affected if the user is using a third party service.

Regards

Baldur