Re: [homenet] Security goals

Fred Baker <fred@cisco.com> Sun, 11 March 2012 21:45 UTC

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From: Fred Baker <fred@cisco.com>
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Date: Sun, 11 Mar 2012 14:44:35 -0700
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To: Tim Chown <tjc@ecs.soton.ac.uk>
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Cc: "homenet@ietf.org Group" <homenet@ietf.org>
Subject: Re: [homenet] Security goals
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On Mar 10, 2012, at 5:04 PM, Tim Chown wrote:

> It's good to see some traction in service discovery and naming.
> 
> We also have a fifth area, security.  The text as it stands says a few
> things that apply to this area, e.g.
> 
> a) An assumption of "Simple Security" with default deny on the CER.  
>    This implies PCP or uPnP to support punching holes.  The text 
>     also talks about addressability vs reachability.

> d) Mention of "Advanced Security", which talks about the ability to
>     install 3rd party policies.  Some have suggested removing this
>     from the initial homenet spec.

One of these days I'll figure out what is "advanced" about "advanced security". I think the point of interest is that it can be expected to not be maintained (how many people maintain their norton-or-whatever-firewall contracts?) and will therefore allow a lot of stuff through.

I will be doing a talk in opsawg trying to make the firewall story a little less "I don't like this and I do like that", more about what a firewall does and doesn't do and what models one might consider - at least three of them. If there is interest in homenet, I could comment on that discussion.

http://tools.ietf.org/html/draft-baker-opsawg-firewalls
  "On Firewalls in Internet Security", Fred Baker, 20-Jan-12