more on aka ipv6 Off-the-shelf home remote monitoring system (was Re: [IP] Man in Germany Foils Burglary in Brazil)
Begin forwarded message:
From: Andrew C Burnette <acb@xxxxxxx>
Date: December 15, 2006 10:16:37 AM JST
To: dave@xxxxxxxxxx
Subject: Re: Off-the-shelf home remote monitoring system (was Re:
[IP] Man in Germany Foils Burglary in Brazil)
Dave,
The problem with enabling these "any to any" connections into the
home are all related to the "stopgap" that is known as Network
Address Translation (or NAT). Home connections are assigned a single
address, often having many devices connected behind a linksys/dlink/
netgear/etc router which simply performs a basic NAT function.
The result is fragile applications written to "get around" the
limitations of NAT, and application gateway helpers built into those
$49 boxes so many of us have in our homes. All of these bandaids
undermine security (due to complexity of code in an application) and
diminish functionality of the network as it is capable of if address
space were made available for all devices needing one.
Thus, "end to end" communication does not exist on the Internet as we
know it today. Why is this? IP address conservation, and limited
space in IPv4 addresses. We have legacy "auto manufacturers" with
more assigned IP addresses than entire countries in Europe and Asia.
The entirety of the cable or DSL offering of Internet service have
fewer addresses than some countries.
IPv6 is the unfortunate answer, only because of the extended address
space it provides. I call it unfortunate as all IPv6's other [good]
features have been backported to IPv4, or are no longer issues (due
to three orders of magnitude increase in CPU power and RAM in routers
in a decade since IPv6 was solidified).
There is no clear economic benefit for the early adopter, and those
companies (ISPs, Carriers, NSPs, etc) are in the weakest financial
positions to invest in transitioning to a "bigger" Internet.
Food for thought in any case.
Thanks,
Andy Burnette
Telcordia Applied Research
http://www.argreenhouse.com
David Farber wrote:
Begin forwarded message:
From: Dave Crocker <dcrocker@xxxxxxxx>
Date: December 15, 2006 7:04:11 AM JST
To: dave@xxxxxxxxxx
Cc: ip@xxxxxxxxxxxxxx, Ross Stapleton-Gray <ross@xxxxxxxxxxxxxxxxxx>
Subject: Off-the-shelf home remote monitoring system (was Re: [IP]
Man in Germany Foils Burglary in Brazil)
David Farber wrote:
"Businessman Joao Pedro Wettlauser was in Cologne, Germany, on
Sunday when he received an alert on his phone informing him that
someone had entered his vacation house in Guaruja, 54 miles south
of Sao Paulo, police said.
He quickly turned on his laptop and, thanks to security cameras
connected to the Internet, was able to see a tattooed man stuffing
goods into trash bags..."
On the one hand, it is clear that all of the pieces of technology
and software for doing this are readily available.
On the other hand, I find myself unclear what the necessary details
are, for arranging this sort of set up work in a normal home and
with normal cell phones, smartphones, laptops, and the like.
As a small example, normal home Internet connections are not very
workable for the operation of servers, yet this report described
coming *from* the Internet and going *into* the home's resources.
I therefore suspect it would be of community benefit to have some
folks suggest the pieces and how to arrange them. This would be
for a home with typical DSL or Cable Internet attachment, typical
Windows or Macintosh machines, and a user who has good installation
and administration skills, but not at the level of programming, or
otherwise requiring deep expertise.
Or there might already be some citations to such recommendations.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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