Cisco 1921: aboard the hw module not used?

Hello

I have a 1921 Cisco who has an IPSec connection to the outside, but despite this, it seems that the "Accelerator" hw module is not used because the stats are all zeros (see below). Also, I can see that the module is enabled (using the crypto engine see the brief), but the router connection to the sw module (with the help of see the crypto engine connections flow)

What could that be caused by?

See you soon,.

Sylvain

gw#show crypto engine accelerator statistic Device:   Onboard VPN Location: Onboard: 0      :Statistics for encryption device since the last clear       of counters 4294967 seconds ago                    0 packets in                           0 packets out                              0 bytes in                             0 bytes out                                0 paks/sec in                          0 paks/sec out                             0 Kbits/sec in                         0 Kbits/sec out                            0 packets decrypted                    0 packets encrypted                        0 bytes before decrypt                 0 bytes encrypted                          0 bytes decrypted                      0 bytes after encrypt                      0 packets decompressed                 0 packets compressed                       0 bytes before decomp                  0 bytes before comp                        0 bytes after decomp                   0 bytes after comp                         0 packets bypass decompr               0 packets bypass compres                    0 bytes bypass decompres               0 bytes bypass compressi                    0 packets not decompress               0 packets not compressed                    0 bytes not decompressed               0 bytes not compressed                    1.0:1 compression ratio                1.0:1 overall           Last 5 minutes:                    0 packets in                           0 packets out                              0 paks/sec in                          0 paks/sec out                             0 bits/sec in                          0 bits/sec out                             0 bytes decrypted                      0 bytes encrypted                          0 Kbits/sec decrypted                  0 Kbits/sec encrypted                     1.0:1 compression ratio                1.0:1 overall gw#show crypto engine brief         crypto engine name:  Virtual Private Network (VPN) Module         crypto engine type:  hardware                      State:  Enabled                   Location:  onboard 0               Product Name:  Onboard-VPN                 HW Version:  1.0                Compression:  Yes                        DES:  Yes                      3 DES:  Yes                    AES CBC:  Yes (128,192,256)                   AES CNTR:  No      Maximum buffer length:  0000           Maximum DH index:  0000           Maximum SA index:  0000         Maximum Flow index:  2000       Maximum RSA key size:  0000         crypto engine name:  Cisco VPN Software Implementation         crypto engine type:  software              serial number:  02FBA4F2        crypto engine state:  installed      crypto engine in slot:  N/A gw#show crypto engine connections flow Crypto engine: Software Crypto Engine       flow_id   ah_conn_id  esp_conn_id     comp_spi           245                 245       0x2F12           246                 246       0x4E13 Crypto engine: Onboard VPN       flow_id   ah_conn_id  esp_conn_id     comp_spi 

Hey, Sylvain.

If you are looking for suite-B on hardware support, then you must upgrade to train 15.2 (4) M.

See the release notes for more details

http://www.Cisco.com/en/us/docs/iOS/15_2m_and_t/release/notes/15_2m_and_t.PDF

"IPSec required with Suite B algorithms are now supported by the hardware encryption engine on the.

Cisco Integrated Services routers generation 2:800 Series, series of 1900, 2901, 2911, 2921, 2935R,

3925th and 3945TH, which each integrated hardware acceleration of encryption VPN.

Suite B necessary includes four suites in the user interface of encryption algorithms to use with IKE

and IPsec, which are described in RFC 6379 and RFC 6380. Each suite consists of a cipher

algorithm, a digital signature algorithm, an algorithm agree key and a digest of hash or message

algorithm.

Suite B provides an improvement in the overall security of Cisco's VPN IPsec, and it allows additional

Security for large scale deployments. Suite B is the recommended solution for organizations that need

Advanced security encryption for the wide area network (WAN) between remote sites.

To get detailed information on the features of Cisco IOS IPsec to 15.2 (4 M) that support the Suite B"

This should answer your question.

Tags: Cisco Security

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