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Re: Is it time to abandon bogon prefix filters?
On Thu, 7 Aug 2008, Randy Bush wrote:
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.