33 Years of the Digest ... founded August 21, 1981
Copyright © 2014 E. William Horne. All Rights Reserved.

The Telecom Digest for Sep 6, 2014
Volume 33 : Issue 151 : "text" Format

Messages in this Issue:
Re: R.I.P. Patrick Townson, September 24, 1942 - August 9, 2014 (Koos van den Hout)
Ready for IPv6? No, not really. (Garrett Wollman)

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Date: Fri, 5 Sep 2014 07:31:58 +0000 (UTC) From: Koos van den Hout <koos+newsposting@kzdoos.xs4all.nl> To: telecomdigestsubmissions.remove-this@and-this-too.telecom-digest.org. Subject: Re: R.I.P. Patrick Townson, September 24, 1942 - August 9, 2014 Message-ID: <lubote$qvn$1@kzdoos.xs4all.nl> Bill Horne <bill@horneqrm.net> wrote in <20140902193614.GA8829@telecom.csail.mit.edu>: > I'd like to write a better story about Pat than what's availalbe now, > so anyone with details on his education, life, relationships, > accomplishments, and family is welcome to send them to my personal > address. I think the Telecom Digest is one of Pat's biggest and longest-running accomplishments. The biggest compliment for this that I know can be found at http://1997.webhistory.org/www.lists/www-talk.1993q1/0241.html Tim Berners-Lee forwarding a suggestion to make the telecom digest available on the web in order to *promote the web*. Koos -- Koos van den Hout, PGP keyid DSS/1024 0xF0D7C263 via keyservers koos@kzdoos.xs4all.nl IPv6: Think ::/0, act ::1. http://idefix.net/ Are you ready to start supporting IPv6?
Date: Sat, 6 Sep 2014 02:13:12 +0000 (UTC) From: wollman@bimajority.org (Garrett Wollman) To: telecomdigestsubmissions.remove-this@and-this-too.telecom-digest.org. Subject: Ready for IPv6? No, not really. Message-ID: <ludqjo$1gij$1@grapevine.csail.mit.edu> In article <lubote$qvn$1@kzdoos.xs4all.nl>, Koos van den Hout <koos+newsposting@kzdoos.xs4all.nl> wrote: >koos@kzdoos.xs4all.nl IPv6: Think ::/0, act ::1. > >http://idefix.net/ >Are you ready to start supporting IPv6? This .signature hit a bit of a raw nerve today. I thought I was ready to support IPv6 years ago. Then along came "privacy" addresses and threw all of that right out the window. I don't want to repeat my rant here, so please see my blog post about why IPv6 as currently specified and implemented is unsuitable for use on anything but small or very tightly controlled networks: http://blog.bimajority.org/2014/09/05/the-network-nightmare-that-ate-my-week/ Everything I write about could be fixed -- indeed, could have been prevented -- but the software vendors who decided that turning on "privacy" addresses would make it seem as if they were doing a good thing should have talked with the network hardware vendors (who would have told them that this was insane). We'll probably end up using DHCPv6 (and turning on DHCP snooping to block clients that don't use a DHCP-assigned IPv6 address) but we don't yet have the ability to do that. A reasonable alternative to "privacy" addresses -- depending on the threat model -- would be either Cryptographically Generated Addresses or generating the interface ID as a 62-bit truncated hash of (prefix, MAC-48) rather than a random number, so that it would at least be stable and traceable within the domain of a single network operator. -GAWollman --
Garrett A. Wollman
wollman@bimajority.org
Opinions not shared by
my employers.
What intellectual phenomenon can be older, or more oft
repeated, than the story of a large research program
that impaled itself upon a false central assumption
accepted by all practitioners? - S.J. Gould, 1993

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