VPN Technology: IPsec
l Predominant standard/ tech. to create VPN
l Designed to protect Internet (IP) traffic
l Protects with:
l Authentication (AH: Authentication Header)
l Key Exchange (IKE: Internet Key Exchange)
l Encryption (ESP: Encapsulating Security Payload)
l In another words:
l Making sure you talk to who they say they really are
l Making sure you have the key to open the message
l Making sure you send your message in a way that only the
recipient understands