The KBC ThruLink Series 3rd generation is a hardware VPN device that allows secure communications to be established over any standard, public or private IP network. ThruLink performs behind firewalls, NAT devices and through almost any other type of network configuration and offers encrypted communication for all IP protocols regardless of the type of traffic. When deployed, ThruLink provides a secure and encrypted tunnel for network communications that will not affect TTL, UPnP, VLAN information, broadcast, multicast, or any other traffic. A built-in modem provides 4G connectivity and supports all primary network providers, without the need for a fixed public IP address.