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authorAaron Dalton <aaron@FreeBSD.org>2006-05-25 22:25:43 +0000
committerAaron Dalton <aaron@FreeBSD.org>2006-05-25 22:25:43 +0000
commitfab0f8ee45620404534275c3540e586a008786b1 (patch)
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parentef6445d066b1c16347b49e2f079bb90d75525865 (diff)
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+The Institute of Electrical and Electronics Engineers (IEEE) assigns an
+Organizational Unique Identifier (OUI) to manufacturers of network
+interfaces. Each interface has a Media Access Control (MAC) address of six
+bytes. The first three bytes are the OUI.
+
+This module allows you to take a MAC address and turn it into the OUI and
+vendor information. You can, for instance, scan a network, collect MAC
+addresses, and turn those addresses into vendors. With vendor information,
+you can often guess at what what you are looking at (e.g. an Apple
+product).
+
+You can use this as a module as its individual functions, or call it as a
+script with a list of MAC addresses as arguments. The module can figure it
+out.
+
+This module tries to persistently cache with DBM::Deep the OUI information
+so it can avoid using the network. If it cannot load DBM::Deep, it uses a
+normal hash (which is lost when the process finishes). You can preload
+this cache with the load_cache() function. So far, the module looks in the
+current working directory for a file named mac_oui.db to find the cache. I
+need to come up with a way to let the user set that location.
+
+WWW: http://search.cpan.org/dist/Net-MAC-Vendor
+Author: brian d foy <bdfoy@cpan.org>