# IKEv2 IPsec VPN > IKEv2 (Internet Key Exchange version 2) IPSec VPN is a protocol used to establish secure, site-to-site Virtual Private Network tunnels, frequently discussed in the context of configuring Cisco ASA firewalls. It provides enhanced security and reliability over its predecessor, IKEv1. - URL: https://optimly.ai/brand/ikev2ipsec - Logo: https://logo.clearbit.com/https://forum.networklessons.com/t/cisco-asa-site-to-site-ikev2-ipsec-vpn/829?page=2 - Slug: ikev2ipsec - BAI Score: 54/100 - Archetype: Incumbent - Category: Networking Technology - Last Analyzed: July 19, 2026 ## Buyer Intent Signals Problems: Self-configuration without expert guidance: Attempting to configure IKEv2 IPsec VPNs on devices like Cisco ASA without access to clear tutorials, documentation, or community support, which can lead to | No secure site-to-site connectivity: Opting not to implement any VPN solution, leaving inter-site network traffic unencrypted and vulnerable to various security threats and interception. Solutions: Cisco ASA Site-to-Site IKEv2 IPsec VPN configuration | troubleshoot IKEv2 VPN Cisco ASA | NetworkLessons IKEv2 IPsec | IKEv1 IPsec VPN: The previous version of the Internet Key Exchange protocol used to establish IPsec tunnels, which has different features and limitations, such as IKEv1's support for multiple peers fo Comparisons: IKEv2 vs IKEv1 redundancy ASA