Category: OSPF

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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GRE IPSec Tunnel – Routing over the Tunnel

GRE IPSec Tunnel – Routing over the Tunnel

Using the same topology and part of the configuration of a previous post (IPSec IKEv1 Formula) we will configure a GRE (Generic Routing Encapsulation) to allow routing protocols (IGP - Interior Gateway Protocols) through the Internet safely. IPSec IKEv1 has a minor issue related to the packets that permits through, and this will be Unicast … Continue reading GRE IPSec Tunnel – Routing over the Tunnel