![]() IPsec uses encryption, encapsulating an IP packet inside an IPsec packet. Its design meets most security goals: availability, integrity, and confidentiality. This standards-based security protocol is also widely used with IPv4 and the Layer 2 Tunneling Protocol. Internet Protocol Security ( IPsec) was initially developed by the Internet Engineering Task Force (IETF) for IPv6, and was required in all standards-compliant implementations of IPv6 before RFC 6434 made it only a recommendation.Secure VPN protocols include the following: The life cycle phases of an IPSec Tunnel in a virtual private network message integrity to detect and reject any instances of tampering with transmitted messages. ![]()
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