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Enter a keyword...   ...or choose a category. choose one... Communications Computer Industry Companies Computer Science Data Graphics Hardware Internet and Online Services Mobile Computing Multimedia Networks Operating Systems Programming Software Standards Types of Computers World Wide Web   tunneling Last modified: Monday, August 09, 2004  (tun´&l-ing) (n.) A technology that enables one network to send its data via another network's connections. Tunneling works by encapsulating a network protocol within packets carried by the second network. For example, Microsoft's PPTP technology enables organizations to use the Internet to transmit data across a VPN. It does this by embedding its own network protocol within the TCP/IP packets carried by the Internet. Tunneling is also called encapsulation.   Related Categories Networks Related Terms L2TP Layer Two Forwarding PPTP split tunneling VPN Shopping tunneling Products Compare Products,Prices and Stores Shop by Category: Toys 374 Store Offers Vacuums 8 Store Offers Health Aids 1144 Store Offers Vacuum Cleaner Accessories 7 Store Offers Video Game Consoles 1 Store Offers