Configuring a Site-to-Site VPN Using Cisco IOS Commands

Configuring a Site-to-Site VPN Using
Cisco IOS Commands
Configuring a site-to-site IPsec VPN using Cisco IOS commands requires
six steps, as follows:
Step 1. Configure the ISAKMP policy.
Step 2. Configure the IPsec transform set or sets.
Step 3. Configure a crypto access control list (ACL).
Step 4. Configure a crypto map.
Step 5. Apply the crypto map to the outgoing interface.
Step 6. Optionally configure and apply an ACL that permits only IPsec
or IKE traffic.