traffic normalizer for ipfw?
Dorin H
bj93542 at yahoo.com
Thu Feb 19 14:31:02 PST 2004
--- Bruce M Simpson <bms at spc.org> wrote:
> On Thu, Feb 19, 2004 at 01:02:16PM -0800, Dorin H
> wrote:
> > Is there some way to configure ipfw to do
> traffic
> > normalizing ("scrubbing", as in ipf for OpenBSD)?
<snip>
> We're looking at bringing pf into the tree.
Is it the same thing as the port pf_freebsd-2.03
(/usr/port/security/pf)? I am mainly familiar with
ipfw on FBSD.
>
> If you're talking about traffic shaping, have a look
> at dummynet which is
> already there.
>
Ok, let me clarify. I am thinking at the ability to
modify the packet headers on the fly, to mitigate some
of the IDS evasion techniques, and possibly eliminate
other network recons.
I know that pf is able to modify things like IP
minimum TTL, reset Don't Fragment, and so on and I was
wondering if there is a way to do it with ipfw or some
additional plug.
Thank you,
/Dorin.
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