Simple definition
IKEv2 is a concept or mechanism used in vpn & ipsec to negotiate security parameters and keys for IPsec.
Technical definition
In a business environment, IKEv2 mainly intervenes to negotiate security parameters and keys for IPsec. Its implementation depends on the architecture, equipment and security policies in place.
What is it used for?
negotiate security settings and keys for IPsec.
Practical example
two gateways use IKEv2 to establish a site-to-site tunnel.
Common issues
- proposal mismatch
- identity peer
- certificate or PSK
Key takeaway: Always adapt the diagnosis to the product version and the architecture actually deployed.