The Tunneling feature is a licensable addition to the GigaSMART® engine that helps alleviate blindness of business-critical traffic at remote sites, virtualized data centers, or hosted in a public cloud. Tunneling is used in conjunction with Flow Mapping® technology to select traffic at remote sites that should be subject to additional inspection. That traffic subset can then be forwarded via IP/UDP or L2GRE encapsulation to centralized monitoring and security resources. Tunneling also works with GigaVUE Cloud Suite to select and tunnel traffic from within virtual environments to the Gigamon Deep Observability Pipeline via L2GRE tunnels. With Tunneling, physical networks can utilize cloud-based tools and load balance across multiple instances.