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From: merlyn@stonehenge.com (Randal L. Schwartz)
To: Bill Yuan <bycn82@gmail.com>
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	(Bill Yuan's message of "Mon, 11 Jun 2012 11:39:56 +0800")
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Cc: Ian Smith <smithi@nimnet.asn.au>, "Brian W." <brian@brianwhalen.net>,
	freebsd-questions@freebsd.org
Subject: Re: how to allow by MAC
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>>>>> "Bill" == Bill Yuan <bycn82@gmail.com> writes:
Bill> I want to create a white list MAC address,  Only the machine which it's MAC
Bill> in the white list will be allowed,  all others will be blocked.

Bad idea.  Since (a) every MAC address that *is* allowed is transmitted
in the clear and (b) it's trivial to spoof a MAC address.

This. is. no. security.

Please stop even trying.

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
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