While IPsec is quite effective in authenticating the peer and establishing assurance about its identity, the lack of attention to authorization questions is a root cause of the existing inadequacies. We conclude that more often than not, the existing policy mechanisms are inadequate.There’s no difference between IPsec running on top of IPv4 or IPv6. For example, IP Base technology package on ISR G2 includes IPv6 support.The first step in every IPsec session setup is key exchange; default key management protocol specified in RFC 6434 is IKEv2. However, you should use the feature navigator to confirm which images support IPv6 on your specific platform/release.
Hence, only IPsec protects all application traffic over an IP network.And don’t forget – if you’d like to get help you with IPv6 design or deployment planning, check out my Expert Express service or contact our professional services team.In computing, Internet Protocol Security (IPsec) is a network protocol suite that authenticates and encrypts the packets of data sent over a network.In places where discussing implementation on a specific OS helps in explanations, the choice is a BSD (Berkeley Software Distribution) variant OS.We discuss the following components: IPSec base protocols, SADB, SPD, manual keying, ISAKMP/IKE, SA management, and policy management.IPsec can automatically secure applications at the IP layer.