Tag: IPSEC

FlexVPN Site to Site – IKEv2

FlexVPN Site to Site – IKEv2

What is a FlexVPN? Cisco answers: "FlexVPN is Cisco's implementation of the IKEv2 standard featuring a unified paradigm and CLI that combines site to site, remote access, hub and spoke topologies and partial meshes (spoke to spoke direct). FlexVPN offers a simple but modular framework that extensively uses the tunnel interface paradigm while remaining compatible … Continue reading FlexVPN Site to Site – IKEv2

Advertisements
Dynamic Virtual Tunnel Interface – Securing a Hub & Spoke Topology

Dynamic Virtual Tunnel Interface – Securing a Hub & Spoke Topology

The last post we talk about VTI to establish a connection between to points over the Internet. This connection was secure via IPSec and allowed dynamic routing protocols through it. The challenge in this post is to escalate this topology into multipoints, which is the usual topologies that we can encounter in the real world. … Continue reading Dynamic Virtual Tunnel Interface – Securing a Hub & Spoke Topology

Dynamic Routing Through IPSec Without GRE – Using VTI’s

Dynamic Routing Through IPSec Without GRE – Using VTI’s

On a previous post, we created a GRE tunnel to permit routing protocol through an insecure (Internet) network and protected it with IPSec. As you all should know GRE adds another layer of encapsulation (at least 4 bytes), which means more overhead. One major advantage compared with the traditional method of IPSec is that, since … Continue reading Dynamic Routing Through IPSec Without GRE – Using VTI’s