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IKEv2 IPsec Virtual Private Networks: Understanding and Deploying IKEv2, IPsec VPNs, and FlexVPN in Cisco IOS by Amjad Inamdar, Graham Bartlett

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Chapter 16. Migration Strategies

Introduction to Migrating to IKEv2 and FlexVPN

Over the last three to four years, many customers have realized the benefits of using IKEv2 and started to migrate to VPN architectures that make use of the benefits of IKEv2 and FlexVPN.

In many instances, customers will make the transition at the same time they upgrade hardware. The rationale is that older hardware does not support the IKEv2 protocol, so the interruption caused by upgrading hardware and migrating to IKEv2 can be combined, minimizing the impact.

VPN architectures already in service are a critical component of any ICT system, allowing remote workers to connect and/or interconnecting remote offices or data centers. Thought and care are required in ...

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