VPN

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VPN: encapsulating the communication between the two PC’s in an encrypted tunnel that uses strong encryption methods.

IPsec (Internet Protocol Security), is a set of protocols define by the Internet Enginering Task Force (IETF) to provide IP security at the network layer.

Inhaltsverzeichnis

IPsec

IPSec based VPN made up of two parts:

  • 1. IKE Internet Key Exchange protocol
  • 2. ESP Encapsulating Security Payload - IPsec protocols

IKE ist the initial negotiation phase,.. two endpoints agree on whitch methods will be used to provide security for the IP traffic ist used to manage connections, by defining a set of SA (Security Associations) one SA for each connection. SAs are unidirectional

PPTP

L2TP

SSL-VPN