This document provides an overview of remote access and VPN technologies. It introduces the Westermo team and company. It discusses how remote access has evolved from conventional dial-up to using the internet and VPNs. It covers VPN protocols like IPsec and OpenVPN, and how they establish secure tunnels. It also discusses cellular communications technologies and considerations for cellular networks. Finally, it ties these concepts together by describing Westermo's WeConnect product for remotely connecting to devices in a secure manner using SSL VPN.