IPsec VPN’sIntroductionIPsec ProtocolsIPsec ModesInternet Key Exchange (IKE) protocolIKE Phases: Phase-1 and Phase-2IPsec VPN ConfiguratonConclusionIntroduction:The “IPSec...

                                                                               Cryptographic SystemsIntroductionCryptographic HashesHMAC/KHMACSymmetric EncrypitionAsymmetric EncryptionDigital SignaturesPublic Key Infrastructure (PKI) IntroductionNetw...

                                                                                    Zone-Based FireWall (ZBFW)IntroductionRules for applying ZBFWZBFW TerminologyZBFW ActionsZBFW ConfigurationIntroduction:The Cisco IOS Zone-Based Firewall is a statefu...

                                                                                            MPLS LAYER-3 VPN IntroductionVirtual Routing and Forwarding (VRF)MP-BGP (Multi-protocol BGP)RD (Route Distinguisher)RT (Route Target)Transport and VPN LabelMP...

                                                                                      VRF LITEVRF Lite is a simplified version of VRF that uses only IP routing, while the full version of VRF can support multiple routing protocols like OSPF and BGP.VR...