From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Braun Date: Thu, 18 Apr 2002 09:42:39 +0000 Subject: [LARTC] Syn Flood Protection Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Hallo Group, i want to implement a syn Flood Protection on our linux Router. on our Cisco we have this Access-list and rat-limit rate-limit input access-group 190 128000 128000 128000 conform-action transmit exceed-action drop access-list 190 deny tcp any any established access-list 190 permit tcp any any access-list 190 deny ip any any now i was trying to wrote the same config with tc iptables -A PREROUTING -i $uplinkdev -t mangle -p tcp --syn -j MARK --set-mark 1 tc qdisc add dev $uplinkdev handle ffff: ingress tc filter add dev $uplinkdev parent ffff: protocol ip prio 50 handle 1 fw police rate 128kbit burst 10 mtu 15k drop flowid :1 But many from our Customers can't connect to our Webservers. what is wrong on my config? cu thomas braun _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/