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Date:      Mon, 11 Jan 2010 21:36:59 -0800
From:      Julian Elischer <julian@elischer.org>
To:        Dmitriy Zamuraev <gigabyte.tmn@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: ng_patch node
Message-ID:  <4B4C0A7B.2020306@elischer.org>
In-Reply-To: <EA78B3BD173A4B86A81E7E61728DC970@in72.ru>
References:  <ac42db051001111440p7b460641g855e4264d9433f58@mail.gmail.com> <EA78B3BD173A4B86A81E7E61728DC970@in72.ru>

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Dmitriy Zamuraev wrote:
>> Hi,
>> I've written netgraph node able to modify arbitrary (8|16|32)-bit
>> unsigned integer in passing packets. Node applies one of =,+,-,&,| and
>> ^ operations to number at given offset.

have an IP version that corrects the checksums as you fiddle bytes.
juat an idea

> 
> Thank you.
> I think about more functionality...
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