Cisco AES Посібник користувача - Сторінка 8

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crypto engine accelerator

To enable a router's onboard hardware accelerator for IPSec encryption, use the crypto engine

accelerator command in global configuration mode. To disable the use of the onboard hardware IPSec

accelerator, and thereby perform IPSec encryption/decryption in software, use the no form of this

command.

Syntax Description

This command has no arguments or keywords.

Defaults

The hardware accelerator for IPSec encryption is enabled.

Command Modes

Global configuration mode

Command History

Release

12.1(3)T

12.1(3)XL

12.2(2)XA

12.2(13)T

12.2(15)ZJ

12.3(4)T

Usage Guidelines

This command is not normally needed for typical operations because the router's onboard hardware

accelerator for IPSec encryption is enabled by default. The hardware accelerator should not be disabled

except on instruction from Cisco TAC personnel.

Examples

The following example shows how to enable the router's onboard hardware accelerator for IPSec

encryption. This operation is normally needed only after the accelerator has been disabled for testing or

debugging purposes.

Router(config)# no crypto engine accel

Warning! all current connections will be torn down.

Do you want to continue? [yes/no]:

Cisco IOS Release 12.3(7)T

DES/3DES/AES VPN Encryption Module (AIM-VPN/EPII, AIM-VPN/HPII, AIM-VPN/BPII Family)

crypto engine accelerator

no crypto engine accelerator

Modification

This command was introduced for the Cisco 1700 series router and other

Cisco routers that support hardware accelerators for IPSec encryption.

Support was added for the Cisco uBR905 cable access router.

Support was added for the Cisco uBR925 cable access router.

This command was integrated into Cisco IOS Release 12.2(13)T and

implemented for the AIM-VPN/EPII & AIM-VPN/HPII on the following

platforms: Cisco 2691, Cisco 3660, Cisco 3725, and Cisco 3745.

This command was implemented for the AIM-VPN/BPII on the following

platforms: Cisco 2610XM, Cisco 2611XM, Cisco 2620XM,

Cisco 2621XM, Cisco 2650XM, and Cisco 2651XM.

This command was integrated into Cisco IOS Release 12.3(4)T.