North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

RE: State Super-DMCA Too True

  • From: E.B. Dreger
  • Date: Sun Mar 30 17:12:59 2003

JM> Date: Sun, 30 Mar 2003 10:34:28 -0500
JM> From: "McBurnett, Jim"


JM> NAT-- HMMM - In my eyes that is a security precaution for the
JM> ignorant.. Think of this: Joe user goes to Wally World, or
JM> Staples and get's a Linksys BEFSR11 cable/dsl router. He adds
JM> NAT, and walla, his computer is no longer wide open to the
JM> world... Albeit not a stateful firewall, it is much more

Actually, it _is_ stateful.  It tracks state so it knows what
inbound traffic is directed to what IP:port on the inside, or
dropped if no match is found.

Run 1:1 NAT and see how secure that is.  Run a "public" IP
address with stateful rules that drop inbound traffic unless
outbound traffic happened "recently".  Compare.

NAT's "security" is a by-product of state that is necessary to
achieve 1:N mapping.


Eddy
--
Brotsman & Dreger, Inc. - EverQuick Internet Division
Bandwidth, consulting, e-commerce, hosting, and network building
Phone: +1 (785) 865-5885 Lawrence and [inter]national
Phone: +1 (316) 794-8922 Wichita

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Date: Mon, 21 May 2001 11:23:58 +0000 (GMT)
From: A Trap <[email protected]>
To: [email protected]
Subject: Please ignore this portion of my mail signature.

These last few lines are a trap for address-harvesting spambots.
Do NOT send mail to <[email protected]>, or you are likely to
be blocked.