Cisco 5510 - ASA SSL / IPsec VPN Edition Getting Started Manual page 158

Implementing the Site-to-Site Scenario
Step 3
Configuring the IKE Policy
Step 1
Cisco ASA 5500 Series Getting Started Guide
12-6
Click Next to continue.
IKE is a negotiation protocol that includes an encryption method to protect data
and ensure privacy; it also provides authentication to ensure the identity of the
peers. In most cases, the ASDM default values are sufficient to establish secure
VPN tunnels between two peers.
In Step 3 of the VPN Wizard, perform the following steps:
Click the Encryption (DES/3DES/AES), authentication algorithms (MD5/SHA),
and the Diffie-Hellman group (1/2/5) used by the adaptive security appliance
during an IKE security association.
Chapter 12 Scenario: Site-to-Site VPN Configuration
78-19186-01