de-peering for security sake

Mike Hammett nanog at
Sat Dec 26 14:19:10 UTC 2015

How much is an acceptable standard to the community? Individual /32s ( or /64s)? Some tipping point where 50% of a /24 (or whatever it's IPv6 equivalent would be) has made your naughty list that you block the whole prefix? 

Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

----- Original Message -----

From: "Owen DeLong" <owen at> 
To: "Dan Hollis" <goemon at> 
Cc: "Mike Hammett" <nanog at>, "NANOG" <nanog at> 
Sent: Saturday, December 26, 2015 1:00:35 AM 
Subject: Re: de-peering for security sake 

> On Dec 25, 2015, at 22:16 , Dan Hollis <goemon at> wrote: 
> On Fri, 25 Dec 2015, Owen DeLong wrote: 
>> Merely because people are asleep at the switch does not give those of us in a position to understand the consequences license to abuse our position. 
> At what point do you cut the wire? How abusive is acceptable? 

IMHO, you never cut the wire. You may filter selectively, but cutting the wire comes with far more collateral damage than actual useful effect. 


More information about the NANOG mailing list