Which VPN tunneling protocol uses IPSec with 3DES for data confidentiality? Dominik September 6, 2020 Anonymity The most widely adopted protocol that leverages Triple DES encryption to ensure data confidentiality is ESP, short for “Encapsulating/Encapsulated Security Payload.” Along with the Authentication Header (AH), ESP is the other possible process identified by the security protocol ID determined as part of Security Association (SA) that’s a mandatory requirement for the establishment of an IPSec connection – and thus VPN service. ESP uses IP protocol number 50 and ultimately ensures not just data confidentiality – of which 3DES is a big part of – but also an anti-replay service allowing for partial sequence integrity. It’s dependable, beautifully redundant in its approach to security, and highly versatile, which does wonders for its practicality. Similar questions to “Which VPN tunneling protocol uses IPSec with 3DES for data confidentiality?”: We also covered these answers, so in case you’re searching for them, they can be found under these links: Which VPN topology is also known as a hub-and-spoke configuration? Which VPN protocol leverages web-based applications? What UDP port is used for IKE traffic from a VPN client to server? For domain-joined computers, what is the simplest way to configure VPN connections? How does a virtual private network (VPN) provide additional security over other types of networks?