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VPN Acceleration Module 2+ (VAM2+) Installation and Configuration Guide
OL-5979-03
Chapter 4 Configuring the SA-VAM2+
Configuration Tasks
Enabling SA-VAM2+
SA-VAM2+ is enabled by default.
To disable SA-VAM2+, use the following commands, starting in global configuration mode:
This completes the procedure for disabling and enabling OIR.
Configuring an IKE Policy
If you do not specify a value for a parameter, the default value is assigned. For information on default
values, refer to the “IP Security and Encryption” chapter of the
Security Command Reference
publication.
To configure an IKE policy, use the following commands beginning in global configuration mode:
Command
Purpose
Step 1
no crypto engine accelerator
<slot number>
Disables SA-VAM2+.
Step 2
crypto engine accelerator
<slot number>
Enables SA-VAM2+.
Command
Purpose
Step 1
Router(config)#
crypto isakmp policy
priority
Defines an IKE policy and enters Internet Security Association
Key Management Protocol (ISAKMP) policy configuration
(config-isakmp) mode.
Step 2
Router(config-isakmp)#
encryption
{
des
|
3des
|
aes
|
aes 128
|
aes 192
|
aes 256
}
Specifies the encryption algorithm within an IKE policy.
•
des—Specifies 56-bit DES as the encryption algorithm.
•
3des—Specifies 168-bit DES as the encryption algorithm.
•
aes
—Specifies 128-bit AES as the encryption algorithm.
•
aes 128
—Specifies 128-bit AES as the encryption algorithm.
•
aes 192
—Specifies 192-bit AES as the encryption algorithm.
•
aes 256
—Specifies 256-bit AES as the encryption algorithm.
Step 3
Router(config-isakmp)#
authentication
{
rsa-sig
|
rsa-encr
|
pre-share
}
(Optional) Specifies the authentication method within an IKE
policy.
•
rsa-sig
—Specifies Rivest, Shamir, and Adelman (RSA)
signatures as the authentication method.
•
rsa-encr
—Specifies RSA encrypted nonces as the
authentication method.
•
pre-share
—Specifies preshared keys as the authentication
method.
Note
If this command is not enabled, the default value (
rsa-sig
)
will be used.