Date: Wed, 29 Dec 1999 21:50:58 -0300 From: Fernando Ariel Gont <fgont@softhome.net> To: freebsd-net@FreeBSD.ORG Subject: ARP makes a LAN "vulnerable"? Message-ID: <.19991229214306.00b874c0@pop.softhome.net>
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Hi! I read that ARP is used to "translate" an IP address to the hardware address of the host (that means, given an IP number of a host, ARP can give me the hardware address of that host). I've also read that you can configure your machine to reply the ARP requests for a given IP number. If so, I could configure my host (in a LAN) to reply to all the ARP requests with the hardware address of MY HOST, instead of the hardware address of the real host. If that is possible, all the LAN information could pass through my machine, and THEN to the real receiver. I think someone could use this "procedure" to steal information. Am I wrong? Regards, Fernando Ariel Gont E-mail: fgont@softhome.net web site: http://members.xoom.com/gont/ --- "Con las computadoras crearemos una civilizacion de estupidos tecnologicos, y una elite se ira quedando con todo. Cuando digo elite me refiero a gente como yo, que puede leer." - Ray Bradbury, escritor To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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