Comparing, Designing, and Deploying VPNs

Chapter 1. What Is a Virtual Private Network? A virtual private network (VPN) allows the provisioning of private network services for an organization or organizations over a public or shared infrastructure such as the I...

Chapter 2. Designing and Deploying L2TPv3-Based Layer 2 VPNs Layer 2 VPNs (L2VPN) can be used to provide site-to-site Layer 2 connectivity. As discussed in Chapter 1, quot;What Is a Virtual Private Network?quot; L2VPNs...

Chapter 3. Designing and Implementing AToM-Based Layer 2 VPNs Any Transport over MPLS (AToM) allows the transport of Layer 2 protocols and connections over a Multiprotocol Label Switching (MPLS) backbone network. Transp...

Chapter 4. Designing MPLS Layer 3 Site-to-Site VPNs Multiprotocol Label Switching (MPLS) Layer 3 VPNs are (predominantly) service-provider-provisioned VPNs that offer advantages such as any-to-any connectivity, support...

Chapter 5. Advanced MPLS Layer 3 VPN Deployment Considerations Chapter 4, quot;Designing MPLS Layer 3 Site-to-Site VPNs,quot; introduced MPLS Layer 3 VPNs and discussed common topologies and deployments. This chapter co...

Chapter 6. Deploying Site-to-Site IPsec VPNs IPsec provides security services to IP, and it has become an extremely popular way to provision site-to-site and remote access VPNs. In a site-to-site VPN, IPsec tunnels are...

Chapter 7. Scaling and Optimizing IPsec VPNs Chapter 6, quot;Deploying Site-to-Site IPsec VPNs,quot; introduced IPsec VPNs. This chapter looks at how to scale IPsec VPNs using technologies such as Tunnel Endpoint Discov...

Chapter 8. Designing and Implementing L2TPv2 and L2TPv3 Remote Access VPNs In Chapter 2, quot;Designing and Deploying L2TPv3-Based Layer 2 VPNs (L2VPN),quot; you saw how Layer Two Tunneling Protocol version 3 (L2TPv3) c...

Chapter 9. Designing and Deploying IPsec Remote Access and Teleworker VPNs IPsec remote access VPNs enable teleworkers and other remote access users to access resources at a central site and experience a similar level o...

Chapter 10. Designing and Building SSL Remote Access VPNs (WebVPN) Providing remote access VPN connectivity is a relatively new application for the Secure Sockets Layer (SSL). SSL was designed to secure TCP-based protoc...