nanog mailing list archives

Re: misunderstanding scale


From: William Herrin <bill () herrin us>
Date: Mon, 24 Mar 2014 12:20:48 -0400

On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer <kauer () biplane com au> wrote:
Addressable is not the same as
accessible; routable is not the same as routed.

Indeed. However, all successful security is about _defense in depth_.
If it is inaccessible, unrouted, unroutable and unaddressable then you
have four layers of security. If it is merely inaccessible and
unrouted you have two.

Regards,
Bill Herrin


-- 
William D. Herrin ................ herrin () dirtside com  bill () herrin us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004


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