automatic rtbh trigger using flow data

Hugo Slabbert hugo at
Fri Aug 31 15:15:35 UTC 2018

On Fri 2018-Aug-31 06:59:29 +0700, Roland Dobbins <rdobbins at> wrote:

>On 31 Aug 2018, at 6:47, Aaron Gould wrote:
>>I'm really surprised that you all are doing this based on source 
>>ip, simply because I thought the distribution of botnet members 
>>around the world we're so extensive that I never really thought it 
>>possible to filter based on sources, i
>Using S/RTBH to drop attack sources has been a valid and useful 
>mitigation tactic for close to 20 years.  Any kind of modern router 
>scales up to large numbers of sources; and note that S/RTBH isn't 
>limited to /32s.
>It's discussed in this .pdf preso:

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

_keeps dreaming_

Hugo Slabbert       | email, xmpp/jabber: hugo at
pgp key: B178313E   | also on Signal

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