Cisco ASA 5505 Getting Started Manual page 146

Implementing the Site-to-Site Scenario
Step 3
Configuring the IKE Policy
Step 1
ASA 5505 Getting Started Guide
10-8
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 10 Scenario: Site-to-Site VPN Configuration
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