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Date: Fri, 14 Sep 2012 14:44:21 +1000 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
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Cc: freebsd-net@freebsd.org
Subject: Re: kernel: arpresolve: can't allocate llinfo for 65.59.233.102
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On Thu, 13 Sep 2012 21:53:23 +0300, ????? ??????? wrote:
 > Then my guess is wrong. I found the message,  where similiar problem was
 > described in ipfw mailling list
 > http://lists.freebsd.org/pipermail/freebsd-ipfw/2011-March/004582.html, with
 > no answer.
 > Maybe it will be usefull for somebody.

For that problem at least, and another that's just emerged in ipfw@ - 
also using ipfw kernel nat - all interfaces shown have TSO enabled.

% man ipfw | tail | head -4
     Due to the architecture of libalias(3), ipfw nat is not compatible with
     the TCP segmentation offloading (TSO).  Thus, to reliably nat your net-
     work traffic, please disable TSO on your NICs using ifconfig(8).

I couldn't find an ifconfig shown in this thread, so I'm left wondering 
whether TSO is configured on the OP's or any of the problem boxes here?

cheers, Ian