IPsec Virtual Private Network Fundamentals

Chapter 1. to VPN Technologies Modern business environments have been consistently changing since the advent of the Internet in the 1990s. Now more than ever, organizational leaders are asking themselves how efficienci...

Chapter 2. IPsec Fundamentals Internet Protocol Security (IPsec), as defined in RFC 2401, provides a means by which to ensure the authenticity, integrity, and confidentiality of data at the network layer of the Open Sys...

Chapter 3. Basic IPsec VPN Topologies and Configurations In this chapter, we will review several common deployments of IPsec virtual private networks (VPNs). We will begin by reviewing the typical site-to-site IPsec mod...

Chapter 4. Common IPsec VPN Issues In this chapter, we will discuss several areas of IPsec virtual private network (VPN) design that commonly present obstacles to successful deployment. We will begin our discussion with...

Chapter 5. Designing for High Availability IPSec is a Layer 3 virtual private network (VPN) technology, offering a wide array of options to execute when designing for High Availability (HA). In this chapter, we will rev...

Chapter 6. Solutions for Local Site-to-Site High Availability As we discussed in Chapter 5, quot;Designing for High Availability,quot; there are many ways to design for High Availability (HA) in IPsec virtual private ne...

Chapter 7. Solutions for Geographic Site-to-Site High Availability In Chapter 5, quot;Designing for High Availability,quot; we had introduced elements of local IPsec Virtual Private Network (VPN) high availability and g...

Chapter 8. Handling Vendor Interoperability with High Availability IPSec is a standards-based protocol, and as such, the Internet Engineering Task Force (IETF) and other standards bodies have provided substantial requir...

Chapter 9. Solutions for Remote-Access VPN High Availability As workforces become more virtualized and mobile, the growth in Remote-Access Virtual Private Network (RAVPN) deployments increases, which also drives the nee...

Chapter 10. Further Architectural Options for IPsec Up until this point, we've discussed major deployments and best practice design fundamentals for IPsec VPN deployments. Situations may arise in which IPsec network arc...

Chapter 11. Public Key Infrastructure and IPsec VPNs A Public Key Infrastructure (PKI) entails a system of cryptographic endpoints that use an infrastructure of trusted resources, such as Certificate Authorities (CAs) a...

Chapter 12. Solutions for Handling Dynamically Addressed Peers There often exist areas of IPSec design that could benefit from more flexible peering options. From this demand arose the creation of solutions to handle dy...