VPN uses two IPSec protocols to protect data as it flows through the VPN: Authentication Header (AH) and Encapsulating Security Payload (ESP) . The other part of IPSec enablement is the Internet Key Exchange (IKE) protocol, or key management.
Read moreWhat are the protocols used in IPsec?
Two primary types of IP Security (IPSec) protocols exist: IP Type 50 Encapsulating Security Payload (ESP) and IP Type 51 Authentication Header (AH) . ESP provides authentication and encryption; AH provides authentication but not encryption.6 Kas 2003
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