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From: Robert Huff <roberthuff@rcn.com>
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Date: Mon, 25 Jun 2012 18:23:56 -0400
To: "Christopher J. Ruwe" <cjr@cruwe.de>
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Cc: freebsd-questions@freebsd.org
Subject: IPNAT seems to affect network performance? of jails on lo0
 (10.0.0.0/24) - why?
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Christopher J. Ruwe writes:

>  On a KVM virtualized host, I run FreeBSD 8.3-RELEASE-p3 and some
>  qjails, 8.3-RELEASE. The jails are connected all via lo0 on
>  10.0.0.0.
>  
>  While by the large working as expected, I have noticed one
>  pecularity I have failed to pinpoint: When launching processes
>  with some network interaction, like sshing into one of the jails
>  from the platform or launching emacs, the command spends ages (
>  ~(1-2) minutes) idling?  (nothing happens) before becoming
>  interactive.

	If the number is very close to 90 seconds, my first guess would
be you have a DNS problem.


					Robert Huff