Bem, retirado das docs do OpenBSD packet filter:
http://www.openbsd.org/faq/pf/tagging.html
Segue treicho abaixo:
Tagging Ethernet Frames
Tagging can be performed at the Ethernet level if the machine doing
the tagging/filtering is also acting as a bridge(4). By creating
bridge(4) filter rules that use the tag keyword, PF can be made to
filter based on the source/destination MAC address. Bridge(4) rules
are created using the brconfig(8) command. Example:
# brconfig bridge0 rule pass in on fxp0 src 0:de:ad:be:ef:0 \
tag USER1
And then in pf.conf:
pass in on fxp0 tagged USER1
--
Atenciosmente
Mario Augusto Mania <m3BSD>
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[EMAIL PROTECTED]
Cel.: (43) 9938-9629
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