Date: Fri, 24 May 2002 07:07:14 -0700 From: Luigi Rizzo <rizzo@icir.org> To: Craig Rodrigues <crodrigu@bbn.com> Cc: freebsd-net@FreeBSD.ORG Subject: Re: Question about Dummynet and Diffserv Message-ID: <20020524070714.E61411@iguana.icir.org> In-Reply-To: <20020523125935.A32262@bbn.com>; from crodrigu@bbn.com on Thu, May 23, 2002 at 12:59:35PM -0400 References: <20020521234248.B13074@bbn.com> <20020522024323.A34030@iguana.icir.org> <20020522123100.A24632@bbn.com> <20020522173857.B8894@blossom.cjclark.org> <20020523125935.A32262@bbn.com>
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On Thu, May 23, 2002 at 12:59:35PM -0400, Craig Rodrigues wrote:
...
> Hi,
>
> I merged from -CURRENT to my -STABLE tree some changes made in October 2000 to
> sys/netinet/ip_fw.{c,h} and sbin/ipfw/ipfw.c which add ipfw
> filtering based on iptos.
>
> However, from reading the documentation, it seems that only the
> older IP TOS precedence values are supported for filtering.
i am not sure but i seem to remember seeing keywords for the
newer codepoint values as well. In any case, they should not be
hard to add.
cheers
luigi
> Is it possible to use ipfw to filter based on any Diffserv codepoint value?
>
> This is from the man page:
>
> " iptos spec
> Match if the IP header contains the comma separated list
> of service types specified in spec. The supported IP
> types of service are:
>
> lowdelay (IPTOS_LOWDELAY), throughput (IPTOS_THROUGHPUT),
> reliability (IPTOS_RELIABILITY), mincost (IPTOS_MINCOST),
> congestion (IPTOS_CE). The absence of a particular type
> may be denoted with a `'!.
> "
>
> Thanks.
> --
> Craig Rodrigues Distributed Systems and Logistics, Office 6/304
> crodrigu@bbn.com BBN Technologies, a Verizon company
> (617) 873-4725 Cambridge, MA
>
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