Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 1 Mar 2007 09:36:27 +0100
From:      Daniel Hartmeier <daniel@benzedrine.cx>
To:        Eduardo Meyer <dudu.meyer@gmail.com>
Cc:        freebsd-pf@freebsd.org
Subject:   Re: flags tcp and abscence of flag
Message-ID:  <20070301083627.GA16493@insomnia.benzedrine.cx>
In-Reply-To: <d3ea75b30702281148q41a585c7s7ec1f4d3361be554@mail.gmail.com>
References:  <d3ea75b30702281111q1160f097oc07e135e4d4d52c3@mail.gmail.com> <Pine.NEB.4.64.0702281336230.1764@glacier.reedmedia.net> <d3ea75b30702281148q41a585c7s7ec1f4d3361be554@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Feb 28, 2007 at 04:48:37PM -0300, Eduardo Meyer wrote:

> Translating to human lang, what I want is "look everywhere and match
> only packets with fin set but syn, rst and ack unset.
> 
> How can I do the "unset" evaluation?

"flags F/FSRA" does precisely that. It is not the same as "flags F/F",
which would only test whether FIN is set.

Daniel



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070301083627.GA16493>