nanog mailing list archives
Re: IAB concerns against permanent deployment of edge-based filtering
From: Leo Bicknell <bicknell () ufp org>
Date: Sat, 18 Oct 2003 13:28:50 -0400
In a message written on Sat, Oct 18, 2003 at 12:26:21PM -0400, Eric Gauthier wrote:
Again, I definitely agree with the IAB's recommendation. However, its difficult to defend this point of view in practice since most of the equipment does basic packet filtering in hardware or with minimal cost to peformance. So, I just can't figure out how to sit in front of our administration and justify the replacement of a zero-cost solution with the cost of added staff and equipment to mitigate these security risks, especially when the up side is just not "limiting the potential for deployment of future applications".
Well, but you've hit the nail on the head. The fitler solution is _NOT_ zero cost, it is deferred cost. I suggest you phrase it that way. It's a way of deferring the cost to later, with interest. The longer you use it, the higher that interest payment will be, in the form of new and different attacks you can't block. Phrasing it to the bean counters that it is deferring the cost, with interest, and suggesting that simultaneously some money be spent on user education, better software, or whatever is appropriate to insure you don't have a "huge baloon payment" later might help put it in terms they can understand. Similar parallels can be drawn to antibiotics -- the over use will eventually render them ineffective. It's a very similar situation, and sometimes you have to just invest in not getting sick in the first place (wash your hands...patch your system). -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/ Read TMBG List - tmbg-list-request () tmbg org, www.tmbg.org
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Current thread:
- IAB concerns against permanent deployment of edge-based filtering Jun-ichiro itojun Hagino (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering bmanning (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Randy Bush (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Leo Bicknell (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Eric Gauthier (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Leo Bicknell (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering bmanning (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Valdis . Kletnieks (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering bmanning (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Eliot Lear (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering E.B. Dreger (Oct 18)
- Re: IAB concerns against permanent deployment of edge-based filtering Randy Bush (Oct 19)
- Re: IAB concerns against permanent deployment of edge-based filtering bmanning (Oct 20)
- Re: IAB concerns against permanent deployment of edge-based filtering Randy Bush (Oct 20)
- Re: IAB concerns against permanent deployment of edge-based filtering Stephane Bortzmeyer (Oct 20)
- Re: IAB concerns against permanent deployment of edge-based filtering Owen DeLong (Oct 20)
- Re: IAB concerns against permanent deployment of edge-based filtering bmanning (Oct 18)