/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist

	<key>Interfaces</key>
	<array>
		<dict>
			<key>BSD Name</key> <string>en0</string> <key>IOBuiltin</key> <true/> <key>Active</key> <true/>
			<key>IOInterfaceNamePrefix</key> <string>en</string>
			<key>IOInterfaceType</key> <integer>6</integer> <key>IOInterfaceUnit</key> <integer>0</integer>
			<key>IOMACAddress</key> <data> ZLno0erG </data>
			<key>IOPathMatch</key> <string>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/
			    GIGE@A/NVEthernet/en0</string>
			<key>SCNetworkInterfaceInfo</key> <dict> <key>UserDefinedName</key> <string>Ethernet</string> </dict>
			<key>SCNetworkInterfaceType</key> <string>Ethernet</string>
		</dict>
		<dict>
			<key>BSD Name</key> <string>en1</string> <key>IOBuiltin</key> <true/> <key>Active</key> <true/>
			<key>IOInterfaceNamePrefix</key> <string>en</string>
			<key>IOInterfaceType</key> <integer>6</integer> <key>IOInterfaceUnit</key> <integer>1</integer>
			<key>IOMACAddress</key> <data> +B7f2UeI </data>
			<key>IOPathMatch</key> <string>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/
			    RP04@15/IOPP/ARPT@0/AirPort_Brcm4331/en1</string>
			<key>SCNetworkInterfaceInfo</key> <dict> <key>UserDefinedName</key> <string>Wi-Fi</string> </dict>
			<key>SCNetworkInterfaceType</key> <string>IEEE80211</string>
		</dict>
		<dict>
			<key>BSD Name</key> <string>en2</string> <key>IOBuiltin</key> <false/>
			<key>IOInterfaceType</key> <integer>6</integer> <key>IOInterfaceUnit</key> <integer>2</integer>
			<key>IOMACAddress</key> <data> YPtCg3JI </data>
			<key>IOPathMatch</key> <string>IOService:/IOResources/IOUserEthernetResource/
                          IOUserEthernetResourceUserClient/IOUserEthernetController/en2</string>
			<key>SCNetworkInterfaceInfo</key> <dict> <key>UserDefinedName</key> <string>Bluetooth PAN</string> </dict>
			<key>SCNetworkInterfaceType</key> <string>Ethernet</string>
		</dict>
		<dict>
			<key>BSD Name</key> <string>fw0</string> <key>IOBuiltin</key> <true/> <key>Active</key> <true/>
			<key>IOInterfaceNamePrefix</key> <string>fw</string>
			<key>IOInterfaceType</key> <integer>144</integer> <key>IOInterfaceUnit</key> <integer>0</integer>
			<key>IOMACAddress</key> <data> ZLno//7R6sY= </data>
			<key>IOPathMatch</key> <string>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/
			    RP05@16/IOPP/FRWR@0/AppleFWOHCI/IOFireWireController/IOFireWireLocalNode/IOFireWireIP/fw0</string>
			<key>SCNetworkInterfaceInfo</key> <dict> <key>UserDefinedName</key> <string>FireWire</string> </dict>
			<key>SCNetworkInterfaceType</key> <string>FireWire</string>
		</dict>
	</array>
	<key>Model</key> <string>MacBookPro5,5</string>

System/Preferences