
Authenticate the identities of the two VPN gateways or endpoints.This is done using the Internet Key Exchange (IKE) protocol. In Phase 1, also known as the IKE Phase, the two endpoints of the VPN tunnel establish a secure channel to communicate securely. These phases are integral in setting up a secure channel for data transmission. When establishing a VPN tunnel, the communication process is split into two main phases: Phase 1 and Phase 2.

This guide will walk you through useful commands to help troubleshoot new VPN tunnels effectively.

When things don’t go as planned, having the right tools and commands to diagnose and resolve issues is essential. There are multiple phases involved and numerous parameters to be considered. Setting up a Virtual Private Network (VPN) can be tedious.
