Subject: Re: "corrupt
To: William Waites <ww@styx.org>
From: David Young <dyoung@pobox.com>
List: tech-net
Date: 05/05/2004 23:01:36
On Wed, May 05, 2004 at 11:55:48PM -0400, William Waites wrote:
> On Thu, May 06, 2004 at 11:29:16AM +0900, Jun-ichiro itojun Hagino wrote:
> > 	even though i always stop dhclient by "dhclient -r", i get "corrupt
> > 	lease file" error.  the error persists even if i remove the lease file
> > 	before invocation of dhclient (i see the error message starting from
> > 	2nd invocation).  any clues?
> >
> > # dhclient wm0
>   <snip> 
> > ip length 576 disagrees with bytes received 580.
> > accepting packet with data after udp payload.
> 
> could this be related? i have never seen this before.

Usually this happens because in promiscuous mode, the device includes
the checksum, but the driver neither strips the FCS nor sets M_HASFCS.

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933