Provide you a secure connection for main core of business and asset management, employees, and customers with a secure and reliable Internet connection to remote sites, then Virtual Private Network (VPN) is the service that you need.  VPN allows a set of sites to communicate over the public Internet network, EARTHLINK provides several VPN services based on your business needs. It provides layer 1 leased line, layer 2, and layer 3 VPN based on MPLS, through protected mesh network with optional last mile connection (wireless, Fiber Optic).