From mboxrd@z Thu Jan 1 00:00:00 1970 From: Athan Subject: Re: HELP: Conntrack table filling up !!! Date: Thu, 2 Jan 2003 20:35:53 +0000 Sender: netfilter-admin@lists.netfilter.org Message-ID: <20030102203552.GC10404@miggy.org> References: <20021231235005.GD1985@miggy.org> <007b01c2b295$d8422540$0100a8c0@zultys.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="NMuMz9nt05w80d4+" Return-path: Content-Disposition: inline In-Reply-To: <007b01c2b295$d8422540$0100a8c0@zultys.com> Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: To: netfilter@lists.netfilter.org --NMuMz9nt05w80d4+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 02, 2003 at 11:33:36AM -0800, Ranjeet Shetye wrote: > Actually, the ICMP problem that I have seen does not go away with a > larger ip_conntrack_max. The extra table space just gets filled up. > Agreed, that the ICMP packets I used to flood the iptables conntrack > mechanism did not strictly comply with ICMP RFC standards, but then > which cracker cares about standards ? :( That's why I asked, are you > seeing malformed ICMP packets ? Fair enough. Check out if the unclean match module catches these bad ICMP packets then: iptables -A INPUT -i ${PUBINT} --match unclean -j LOG --log-level info --l= og-prefix "fwr-unclean " -Ath --=20 - Athanasius =3D Athanasius(at)miggy.org / http://www.miggy.org/ Finger athan(at)fysh.org for PGP key "And it's me who is my enemy. Me who beats me up. Me who makes the monsters. Me who strips my confidence." Paula Cole - ME --NMuMz9nt05w80d4+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAj4UoqgACgkQzbc+I5XfxKcMJQCfapBNDbuquGwTJfz6KLDuGgA8 W0cAn3tYM8MlvKuOKMMYy14jfrNEKIKi =IcY4 -----END PGP SIGNATURE----- --NMuMz9nt05w80d4+--