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Upon completion of this lesson, the successful participant will be able to: Describe the purpose and operation of VPNs, differentiate between the various types of VPNs; identify the Cisco VPN product line and the security features of these products; configure a site-to-site VPN GRE tunnel;. Inviting you to refer. | Chapter 8- Implementing Virtual Private Networks -- SbACHKHOA ÍT ACADEMY CCNA Security 111.111. CISCO BACHKHOA IT ACADEMY Major Concepts Describe the purpose and operation of VPN types Describe the purpose and operation of GRE VPNs Describe the components and operations of IPsec VPNs Configure and verify a site-to-site IPsec VPN with preshared key authentication using CLI Configure and verify a site-to-site IPsec VPN with preshared key authentication using CCP Configure and verify a Remote Access VPN BACHKHOA IT ACADEMY Lesson Objectives Upon completion of this lesson the successful participant will be able to 1. 2. 3. 4. 5. Describe the purpose and operation of VPNs Differentiate between the various types of VPNs Identify the Cisco VPN product line and the security features of these products Configure a site-to-site VPN GRE tunnel Describe the IPSec protocol and its basic functions 6. Differentiate between AH and ESP ugi 7. Describe the IKE protocol and modes 8. Describe the five steps of IPSec .