Date: Mon, 25 Sep 2006 12:51:29 +0200 From: Thomas Vogt <thomas@bsdunix.ch> To: Roman Bogorodskiy <novel@FreeBSD.org> Cc: freebsd-ipfw@FreeBSD.org, "Andrey V. Elsukov" <bu7cher@yandex.ru>, Oleg Bulyzhin <oleg@FreeBSD.org>, Gleb Smirnoff <glebius@FreeBSD.org>, Luigi Rizzo <rizzo@icir.org> Subject: Re: kern/103454: [ipfw] [patch] add a facility to modify DF bit of the IP packet Message-ID: <4517B4B1.4000803@bsdunix.ch> In-Reply-To: <20060925095726.GC99061@novel.fannet.ru> References: <200609211400.k8LE0uMN075069@freefall.freebsd.org> <4513641C.3010002@yandex.ru> <20060925095726.GC99061@novel.fannet.ru>
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Hello
Roman Bogorodskiy schrieb:
> Andrey V. Elsukov wrote:
>
>> Roman Bogorodskiy wrote:
>>> +.It Cm setdf Ar value
>>> +Changes
>>> +.Cm DF
>>> +bit of the IP packet.
>>> +Value may be 0 (May Fragment) or 1 (Don't Fragment).
>> May be, it would be more handy make this feature via modifier
>> (not an action).
>> Rule format:
>> <action> [setdf|resetdf] <rule body>
>>
>> Or more extensible, use not only DF modification:
>> <action> [{modip [DF|TOS|DSCP|TTL]}] <rule body>
>
> Yeah, that's nice idea. However, I have already working DF bit stuff and
> tos/dscp stuff as well (kern/102471) implemented in another way. And
> since committers don't seem to show intested in these
> patches/functionaliy, I'm not quite sure if I need to waste time on
> re-implementing it because it would be pretty useless if these patches
> would hang in GNATS forever.
I hope someone will commit it. DSCP/TOS feature in ipfw is pretty useful
if you're doing VOIP or QoS in generell.
The days where ISPs don't do QoS because they do erything with
"over-provesioning" are over. Most do MPLS QoS but thats more for the
backbone.
I would like to see this patch in the main tree. Of course the DF
modification would be nice too.
Cheers,
Thomas
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