nanog mailing list archives

Re: AH or ESP


From: Jack Kohn <kohn.jack () gmail com>
Date: Wed, 27 May 2009 05:05:47 +0530



The delusion that network operators can successfully use unhelpful
protocols and/or smoke and mirrors to force idealist network design on
others needs to end.  People use new protocols because they are better.
If  the benefit of moving to a new protocol does not outweigh the pain
of moving to it, people don't use it.  That's why the OSI protocols did
not kill IP like they were supposed to in the 90s, it is why the largely
forgotten mandated move from Windows to secure OSes (ie, Unix) for all
government employees never happened, and it is why IPv6 is sputtering.
If people want to use NAT, they are going to use NAT.  They may stop
using it if the widespread adoption of peer to peer protocols means they
are missing out on things other people are doing.  They are not going to
stop using NAT to use a protocol maliciously designed to break it; they
will just wait, patiently and nearly always successfully, for somebody
to come out with a version that has no such malice.  They are certainly
not going to stop using NAT because somebody tells them they should use
a security protocol that does not secure anything worth securing.

BitTorrent is a better anti-NAT tool than AH ever will be.  More carrot,
less stick.


I agree. Folks are going to use ESP-NULL if they really want Integrity
Protection ..


-Dave




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