Tag: Cisco

VRF and OSPFv3

VRF and OSPFv3

Virtual Routing Forwarding used to create virtual routing instances in a router. Configurations: R1 hostname R1 ! ! ip vrf BLUE  description BLUE Virtual Forwarding ! ip vrf RED  description RED Virtual Forwarding ! ! interface Ethernet0/0  description RED Network 10  ip vrf forwarding RED  ip address 10.0.0.1 255.255.255.0  ipv6 enable  ospfv3 1 ipv4 area … Continue reading VRF and OSPFv3

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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

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