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Date:      Fri, 14 Mar 2008 10:11:06 +0000 (UTC)
From:      "Bjoern A. Zeeb" <bz@FreeBSD.org>
To:        Mike Silbersack <silby@silby.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: TCP options order changed in FreeBSD 7, incompatible with some routers
Message-ID:  <20080314100707.F50685@maildrop.int.zabbadoz.net>
In-Reply-To: <20080314005224.S65945@odysseus.silby.com>
References:  <f90b44e40803111756h517b373ala8afdff9395b7fac@mail.gmail.com> <20080312231330.D60219@odysseus.silby.com> <20080312232607.J60219@odysseus.silby.com> <20080313154547.F50685@maildrop.int.zabbadoz.net> <20080314005224.S65945@odysseus.silby.com>

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On Fri, 14 Mar 2008, Mike Silbersack wrote:

> On Thu, 13 Mar 2008, Bjoern A. Zeeb wrote:
>
>> It should give you output like this:
>> 
>> <mss 1396,nop,wscale 3,nop,nop,timestamp 3321226304 
>> 19549200,sackOK,eol,0x01[bad padding]>
>
> I like the [bad padding].

:-)


>> <mss 1396,nop,wscale 3,nop,nop,timestamp 574483947 
>> 19641135,sackOK,eol,0x00>
>
> But I think the "good" case should look like it did before, per POLA.

Ok, I am only printing it in case bad padding happens or one gave -v.

The new patch is here:

http://sources.zabbadoz.net/freebsd/patchset/20080314-01-tcpdump-print-tcp-option-padding.diff

-- 
Bjoern A. Zeeb                                 bzeeb at Zabbadoz dot NeT
Software is harder than hardware  so better get it right the first time.


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