Date: Wed, 13 May 2009 10:48:02 -0600 From: Brett Glass <brett@lariat.net> To: net@freebsd.org Subject: MAC locking and filtering in FreeBSD Message-ID: <200905131648.KAA15455@lariat.net>
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I need to find a way to do "MAC address locking" in FreeBSD -- that is, to ensure that only a machine with a particular MAC address can use a particular IP address. Unfortunately, it appears that rules in FreeBSD's IPFW are "stuck" on one layer: rules that look at Layer 2 information in a packet can't look at Layer 3, and vice versa. Is there a way to work around this to do MAC address locking and/or other functions that involve looking at Layer 2 and Layer 3 simultaneously? --Brett Glass
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