North American Network Operators Group
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: Is it time to abandon bogon prefix filters?

  • From: Sean Donelan
  • Date: Wed Aug 06 14:01:37 2008
On Thu, 7 Aug 2008, Randy Bush wrote:
serious curiosity:

what is the proportion of bad stuff coming from unallocated space vs
allocated space?  real measurements, please.  and are there longitudinal
data on this?

are the uw folk, gatech, vern, ... measuring?

Attacks or misconfigured leaks?

Leaks of RFC1918 stuff is pretty common, just ask any of the root server operators how many packets they see from RFC1918 leaking networks or do a
traceroute across several residential cable network backbones.

Attacks aren't as common because there is enough (not 100%) anti-spoofing (good) and/or bogon-filters (not as good) in different parts of the Internet it requires more thought to launch a spoofed DDOS than it does just to use tens of thousands of non-spoofed bots to launch a DDOS.

Arbor Networks has some data.