why mactrack cann't find my device?

[zztop2006]

hi
i install mac track and then download oui.txt from ieee (http://standards-oui.ieee.org/oui/oui.txt) and import manually into mac track by:
php mactrack_import_ouidb.php -f=oui.txt

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all import record is visible:

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and here is Switch1 snmp information

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then i import my device(switch,router) from cacti into mac track and then define device type

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then i run php mactrack_scanner.php -id=1 -d but scanner prompt: ERROR device type not found

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which step maybe wrong?
is there any thing that maybe i forgot?

when i open oui.txt in notepad++ and search about 'C3750',it dosn't found any thing.is that normall?

my switch is snmp version3
mac track is 2.9

[zztop2006]

any idea?

[zztop2006]

in device types -> ndor snmp Object ID Match i have a mistake.

this is switch snmp information

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before:

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after correct Vendor snmp Object ID Match

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my problem solved.