Penetration Testing mailing list archives
Re: How NAT reacts on table flood ?
From: "Robert E. Lee" <robert () dyadsecurity com>
Date: Tue, 11 Jul 2006 10:45:12 -0700
On Tue, 11 Jul 2006 15:15:12 +0200 "Norbert François" <norbertlike () gmail com> wrote:
I was wondering how the NAT reacts when its translation table is full... For example, suppose that you've 100 computers behind a NAT (University) and one (or more) of them engages purposely a lot of connexion, in order to fill the NAT table, what will occur ?
It will no longer complete new connections. In most cases the already established connections will continue to function, but in some cases the device will stop passing traffic altogether. Pretty easy to replicate this one from home if you have a linksys/smc/whatever nat box at your house, grab your favorite port scanner and scan the internet at a high speed. It should kill your NAT box rather quickly as it has to account for connection status for every attempted connection. Robert -- Robert E. Lee Chief Information Officer http://www.dyadsecurity.com phone: (949) 394-2033 fax : (949) 486-6601 email: robert () dyadsecurity com ------------------------------------------------------------------------------ This List Sponsored by: Cenzic Concerned about Web Application Security? Why not go with the #1 solution - Cenzic, the only one to win the Analyst's Choice Award from eWeek. As attacks through web applications continue to rise, you need to proactively protect your applications from hackers. Cenzic has the most comprehensive solutions to meet your application security penetration testing and vulnerability management needs. You have an option to go with a managed service (Cenzic ClickToSecure) or an enterprise software (Cenzic Hailstorm). Download FREE whitepaper on how a managed service can help you: http://www.cenzic.com/news_events/wpappsec.php And, now for a limited time we can do a FREE audit for you to confirm your results from other product. Contact us at request () cenzic com for details. ------------------------------------------------------------------------------
Current thread:
- How NAT reacts on table flood ? Norbert François (Jul 11)
- Re: How NAT reacts on table flood ? Lynx (Jul 11)
- Re: How NAT reacts on table flood ? Robert E. Lee (Jul 11)
- <Possible follow-ups>
- Re: How NAT reacts on table flood ? Bob Middaugh (Jul 11)
- Re: How NAT reacts on table flood ? Bob Middaugh (Jul 11)
- Re: How NAT reacts on table flood ? Ralph Forsythe (Jul 11)
- Re: How NAT reacts on table flood ? Martin Mačok (Jul 13)