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What is IKEv2/IPSec?
IKEv2, or Internet Key Exchange version 2, is a VPN Protocol built around the authentication suite IPSec. The two work together to create a secure tunnel for user data.
High level of encryption
IKEv2 uses the leading Diffie–Hellman key exchange algorithm. The server supports leading configurations like AES, Blowfish, and Camellia. The protocol supports 256-bit encryption and allows Perfect Forward Secrecy.
Highly Stable
IKEv2 is one of the most stable VPN protocols currently available. It supports the Mobility and Multihoming protocol, which allows for improved reliability, and offers an auto-connect option.
High Speeds
One of the biggest reasons for IKEv2’s popularity is how fast the protocol is. Unlike previous VPN protocols, IKEv2/IPSec offers users a high-speed transfer without sacrificing security.
How Does IKEv2 Work?
Using a Diffie–Hellman key exchange algorithm, the protocol sets up a secure communication channel between your device and the VPN server. IKEv2 then uses that secure communication channel to establish what is called a security association. Meaning, it checks that your device and the VPN server use the same encryption keys and algorithms to communicate. Once the security association is in place, IPSec can create a tunnel and send your data from your device to the secure server.
Best Selling IKEv2/IPSec Routers
What Are The Best IKEv2/IPSec-Supporting Wi-Fi Routers?
What Is the Difference Between OpenVPN and IKEv2/IPSec?
Encryption
Both OpenVPN and IKEv2 are considered very secure by security researchers. Both protocols support leading encryption algorithms and 256-bit encryption.
Speed
On a speed comparison, IKEv2 edges out OpenVPN. Readers can take a look at our in-house tests.
Stability
IKEv2/IPSec offers a number of features, like auto re-connect, that improve stability as compared with OpenVPN. This is very useful for users who are constantly switching between networks.
OpenVPN Server Speeds
Accessing VPN Servers in Los Angeles from New York using OpenVPN.
IKEv2/IPSec Server Speeds
Accessing VPN Servers in Los Angeles from New York using IKEv2/IPSec.
Top DD-WRT FAQs
Do open source routers support IKEv2/IPSec?
One of the issues with IKEv2/IPSec is the lack of support for the protocol, especially when compared with OpenVPN. However, support for IKEv2 Wi-Fi routers has been expanding as VPN Providers are investing in developing solutions for IKEv2/IPSec. At the moment, a handful of VPN providers, like ExpressVPN, provide support for IKEv2 on routers.
