Home page logo

nanog logo nanog mailing list archives

Re: do bogon filters still help?
From: Rob Thomas <robt () cymru com>
Date: Wed, 11 Jan 2006 12:16:30 -0600 (CST)

Hi, Steve.

] So -- I'd like people to re-examine the question.  Does anyone have more 
] recent data on the frequency of bogons as a percentage of attack 
] packets?  What would that number look like if you filtered just the 
] obvious -- the ranges given above, plus the RFC 1918 prefixes?  Are 
] your defenses against non-spoofed attacks really helped by the extra 
] filtering?

Great question, and we're eager to hear the results as well.  Our
study is well past its prime, to be sure.

Rob Thomas
Team Cymru
ASSERT(coffee != empty);

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]