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Catalyst 3750-E (WS-C3750E-24TD) without any license

We purchased used switch Catalyst WS-C3750E-24TD. Output (show version) from it is the end of this letter.
And we found that it writes to the console:
ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization.  This product may contain software that was copied in violation of Cisco's license terms.  If your use of this product is the cause of a support issue, Cisco may deny operation of the product, support under your warranty or under a Cisco technical support program such as Smartnet. 
Please contact Cisco's Technical Assistance Center for more information.

Command sh lic shows lack of permanent license.
How do we get the lowest/default (ipbase) license for this switch? What we need to do to get the license file or activation code?

Switch#sh ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(44)SE2, RELEASE SOFTWARE (fc2) Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 01-May-08 15:00 by antonino Image text-base: 0x00003000, data-base: 0x02000000

ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750E-HBOOT-M) Version 12.2(44r)SE5, RELEASE SOFTWARE (fc3)

Switch uptime is 1 hour, 29 minutes
System returned to ROM by power-on
System image file is "flash:c3750e-universalk9-mz.122-44.SE2.bin"

This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

License Level: ipbase
License Type: Default. No license found.
Next reload license Level: ipbase

cisco WS-C3750E-24TD (PowerPC405) processor (revision C0) with 0K/16376K bytes of memory.
Processor board ID CAT1119R16Q
Last reset from power-on
1 Virtual Ethernet interface
1 FastEthernet interface
56 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:23:05:5B:30:80
Motherboard assembly number     : 73-10313-10
Motherboard serial number       : FDO12360NMN
Model revision number           : C0
Motherboard revision number     : B0
Model number                    : WS-C3750E-24TD-S
Daughterboard assembly number   : 800-28590-01
Daughterboard serial number     : FDO1235122Q
System serial number            : CAT1119R16Q
Top Assembly Part Number        : 800-27546-01
Top Assembly Revision Number    : A0
Version ID                      : V01
CLEI Code Number                : COM7J10ARA
Hardware Board Revision Number  : 0x01

Switch Ports Model              SW Version            SW Image                
------ ----- -----              ----------            ----------              
*    2 30    WS-C3750E-24TD     12.2(44)SE2           C3750E-UNIVERSALK9-M    

Configuration register is 0xF

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