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Date:      Mon, 16 Apr 2001 02:48:05 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        Mike Silbersack <silby@silby.com>, Mark T Roberts <newsletter@marktroberts.com>, freebsd-security@FreeBSD.ORG, net@FreeBSD.ORG
Subject:   Re: non-random IP IDs
Message-ID:  <20010416024805.A688@xor.obsecurity.org>
In-Reply-To: <20010416020311.A1292@xor.obsecurity.org>; from kris@obsecurity.org on Mon, Apr 16, 2001 at 02:03:11AM -0700
References:  <001f01c0c30b$805b0840$d2e2fdce@netrex.com> <Pine.BSF.4.31.0104120035120.2153-100000@achilles.silby.com> <20010416020311.A1292@xor.obsecurity.org>

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On Mon, Apr 16, 2001 at 02:03:11AM -0700, Kris Kennaway wrote:

> Here's a patch ported from OpenBSD which randomizes this (supposedly
> such that it respects the constraint of not wrapping within the
> prescribed time period).  I should wrap it in a sysctl, I guess.
>=20
>   http://www.freebsd.org/~kris/ipid.patch

Okay, I did this and updated the patch, with the sysctl defaulting to
off since the random algorithm does add some amount of overhead.

> Comments?

Kris


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