IPsec Virtual Private Network Fundamentals

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

Geographic IPsec VPN HA with Reverse Route Injection and Multiple IPsec Peers This design option for IPsec VPN Geographic HA leverages two components to deliver continuity of cleartext routed domains across an untrusted network in a highly availab...

Geographic IPsec VPN High Availability with IPsec+GRE and Encrypted Routing Protocols Tunneling traffic in GRE prior to encryption with IPsec enables the encryption of multicast traffic. This is due to the fact that the multicast traffic is repr...

Dynamic Multipoint Virtual Private Networks At this point, we've covered basic IP routing continuity options over IPsec VPN tunnels in the context of Geographic HA, each of which presents its own unique design challenges. In large-scale IPsec+GR...

Summary Geographic HA design considerations must be addressed to fully extend the Local HA concepts discussed in Chapter 6 to present a full IPsec HA solution. Regardless of how highly available an IPsec VPN's tunnel termination point is designe...