Date: Sun, 16 Nov 1997 10:35:03 -0500 From: "Stephen Comoletti" <rugose@delanet.com> To: <freebsd-questions@FreeBSD.ORG> Subject: DoS Message-ID: <199801160336.WAA18362@www.delanet.com>
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I have a situation I need a little advice on. I'm not sure if it belongs here, however it does affect users of FreeBSD as well from what little I do know. Ok..here is the setup. ISP with 2 cisco routers, both communicate between eachother on a regular basis. They use radius for authentication. The isp is under attack by a modified smurf. It has all the symptoms of a smurf but it's comming in via udp and not icmp. to complicate it, the attacker is spoofing the ip of each router and hitting them at the same time, changing the port each time the isp kills input from one. Is there any way to defend/track down/stop an attack of this type? Steve
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