About the Book
Create and manage highly-secure Ipsec VPNs with IKEv2 and Cisco FlexVPN
The IKEv2 protocol significantly improves VPN security, and Cisco’s FlexVPN offers a unified paradigm and command line interface for taking full advantage of it. Simple and modular, FlexVPN relies extensively on tunnel interfaces while maximizing compatibility with legacy VPNs. Now, two Cisco network security experts offer a complete, easy-tounderstand, and practical introduction to IKEv2, modern IPsec VPNs, and FlexVPN.
The authors explain each key concept, and then guide you through all facets of FlexVPN planning, deployment, migration, configuration, administration, troubleshooting, and optimization. You’ll discover how IKEv2 improves on IKEv1, master key IKEv2 features, and learn how to apply them with Cisco FlexVPN.
IKEv2 IPsec Virtual Private Networks offers practical design examples for many common scenarios, addressing IPv4 and IPv6, servers, clients, NAT, pre-shared keys, resiliency, overhead, and more. If you’re a network engineer, architect, security specialist, or VPN administrator, you’ll find all the knowledge you need to protect your organization with IKEv2 and FlexVPN.
Understand IKEv2 improvements: anti-DDoS cookies, configuration payloads, acknowledged responses, and more
Implement modern secure VPNs with Cisco IOS and IOS-XE
Plan and deploy IKEv2 in diverse real-world environments
Configure IKEv2 proposals, policies, profiles, keyrings, and authorization
Use advanced IKEv2 features, including SGT transportation and IKEv2 fragmentation
Understand FlexVPN, its tunnel interface types, and IOS AAA infrastructure
Implement FlexVPN Server with EAP authentication, pre-shared keys, and digital signatures
Deploy, configure, and customize FlexVPN clients
Configure, manage, and troubleshoot the FlexVPN Load Balancer
Improve FlexVPN resiliency with dynamic tunnel source, backup peers, and backup tunnels
Monitor IPsec VPNs with AAA, SNMP, and Syslog
Troubleshoot connectivity, tunnel creation, authentication, authorization, data encapsulation, data encryption, and overlay routing
Calculate IPsec overhead and fragmentation
Plan your IKEv2 migration: hardware, VPN technologies, routing, restrictions, capacity, PKI, authentication, availability, and more
Table of Contents:
Chapter 1 Introduction to IPsec VPNs
Chapter 2 IKEv2: The Protocol
Chapter 3 Comparison of IKEv1 and IKEv2
Chapter 4 IOS IPsec Implementation
Chapter 5 IKEv2 Configuration
Chapter 6 Advanced IKEv2 Features
Chapter 7 IKEv2 Deployments
Chapter 8 Introduction to FlexVPN
Chapter 9 FlexVPN Server
Chapter 10 FlexVPN Client
Chapter 11 FlexVPN Load Balancer
Chapter 12 FlexVPN Deployments
Chapter 13 Monitoring IPsec VPNs
Chapter 14 Troubleshooting IPsec VPNs
Chapter 15 IPsec Overhead and Fragmentation
Chapter 16 Migration Strategies 539
About the Author :
Graham Bartlett, CCIE No. 26709, has designed a number of large scale Virtual Private Networks within the UK and worked with customers throughout the world using IKEv2 and Next Generation Encryption. Graham’s interests include Security and Virtual Private Networks. Within this space he has discovered zero-day vulnerabilities, including the higest severity security advisory in the March 2015 Cisco IOS software and IOS XE software security advisory bundled publication. He has contributed to numerous IETF RFCs, and has intellectual property published as prior art. He is a CiscoLive speaker and has developed Cisco Security exam content (CCIE/CCNP). He is a CCP (Senior) IA Architect, CCP (Practitioner) Security & Information Risk Advisor, CCNP, CISSP, Cisco Security Ninja and holds a BSc(Hons) in Computer Systems and Networks.
Amjad Inamdar CISSP 460898, is a Senior Technical Leader with Cisco IOS Security Engineering, India. He has primarily worked on design, development and deployment of Cisco IOS secure connectivity solutions including the industry leading FlexVPN, DMVPN, GETVPN and EzVPN solutions and is currently working on the Cisco next generation SD-WAN solution. He has contributed to IETF drafts, holds a Cisco patent and has prior art publications. He holds many industry certifications including CISSP, CCSK, CCNP Security, CCDP, CCNP R/S, CCNA (SP, Data Center, Wireless, Voice), Cisco Security Ninja and has presented security at conferences, internal forums and to Cisco customers and partners. He holds a degree (B.E) in Electronics and Communication Engineering.
