A virtual private network (VPN) allows you to send traffic across an untrusted network without exposing the content of that traffic. Conceptually, this is done by creating a pipe between two hosts ...

does anyone have a better idea about IPsec, L2TP and PPP than i do, and can make sense of the below logs? As far as i would know, the main mode peer should be the public IP of the phone on the carrier ...

VPN (Virtual Private Network) is a technology that provides secure communication through an insecure and untrusted network (like the Internet). Usually, it achieves this by authentication, encryption, ...