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Diffie-Hellman (D-H) is a public-key cryptography protocol. It allows two parties to establish a shared secret key used by encryption algorithms (DES or MD5, for example) over an insecure communications channel. D-H is used within IKE (described later in this article) to establish session keys.

Internet Key Exchange version 2 (IKEv2) is an IPsec based tunneling protocol that provides a secure VPN communication channel between peer VPN devices and defines negotiation and authentication for IPsec security associations (SAs) in a protected manner.

IKE Protocol IKE (Internet Key Exchange) is a protocol used to set up security associations for IPSec. These security associations establish shared session secrets from which keys are derived for encryption of tunneled data. IKE is also used to authenticate the two IPSec peers.

IKE Protocol IKE (Internet Key Exchange) is a protocol used to set up security associations for IPSec. These security associations establish shared session secrets from which keys are derived for encryption of tunneled data. IKE is also used to authenticate the two IPSec peers.

The IKE protocol uses UDP packets, usually on port 500, and generally requires 4?6 packets with 2?3 round trips to create an ISAKMP security association (SA) on both sides. The negotiated key material is then given to the IPsec stack.

Internet Key Exchange (IKE) is a standard protocol used to set up a secure and authenticated communication channel between two parties via a virtual private network (VPN). The protocol ensures security for VPN negotiation, remote host and network access.

IPSec supports various types of encryptions, including AES, Blowfish, Triple DES, ChaCha, and DES-CBC. IPSec uses asymmetric and symmetric encryption to provide speed and security during data transfer. In asymmetric encryption, the encryption key is made public while the decryption key is kept private.