Date: Fri, 27 Sep 2002 16:14:12 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Peter Brezny <pbrezny@skyrunner.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Kernel log question "pullup failed" Message-ID: <20020927211411.GD7711@dan.emsphone.com> In-Reply-To: <HDEBKOFAJCKIJIDMEINCAELIEMAA.pbrezny@skyrunner.net> References: <HDEBKOFAJCKIJIDMEINCAELIEMAA.pbrezny@skyrunner.net>
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In the last episode (Sep 27), Peter Brezny said:
> Has anyone seen this before?
>
> > pullup failed
>
> what is it?
It's an ipfw log message. It could certainly stand to be a bit
clearer :)
From man ipfw:
FINE POINTS
o There are circumstances where fragmented datagrams are
unconditionally dropped. TCP packets are dropped if they do
not contain at least 20 bytes of TCP header, UDP packets are
dropped if they do not contain a full 8 byte UDP header, and
ICMP packets are dropped if they do not contain 4 bytes of
ICMP header, enough to specify the ICMP type, code, and
checksum. These packets are simply logged as ``pullup
failed'' since there may not be enough good data in the packet
to produce a meaningful log entry.
--
Dan Nelson
dnelson@allantgroup.com
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