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Article:		OpenBSD PF Developer Interview
Subject:		questions of the bridge
Date:		2004-06-22 11:46:45
From:		xiyang

Dear Sir: i install the OpenBSD3.4 as the bridge firewall.below is the topology: internet<----->OpenBSD_bridge_Firewall<----->hub/switch<------>webserver now,there's a SYNFLOOD attack on my webserver. what can i do on the OpenBSD bridge Firewall? i know the synproxy of the OpenBSD,but,The SYN proxy will not work if PF is running on a bridge(4). would you please give me hand? thank you very much!

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questions of the bridge
2004-06-22 22:09:42 Federico Biancuzzi | [View]

If you install 3.5 you could limit the number of states by src IP. I think this could work if they doesn't use random spoofed src IPs.