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The first 24 bits of a
network card's MAC address uniquely identify the network card's
vendor. This 24-bit number is called the OUI ("Organizationally
Unique Identifier"). The NIC Vendor Identifier is a tool that
allows you to look up a vendor name by MAC address. To look up a
vendor name, click Tools
=>NIC
Vendor Identifier, enter a MAC address, and
click Find.
The vendor's name will be displayed. By default, CommView
replaces the first three octets of the MAC address by the adapter
vendor name in the Packets
tab. This
behavior may be changed by unchecking the Display
vendor names in MAC addresses checkbox in the
General
tab of the
program Options
dialog.
The list
of vendors is contained in the MACS.TXT file located in the
CommView application folder. You can manually edit this list to
add/modify information.
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