Example image of eyePlorer eyePlorer map for 'Virtual private network': Computer network Internet Connection-oriented Link (telecommunications) Virtual circuit Link Layer Tunneling protocol Network topology Internet television IP address World Wide Web Institute of Electrical and Electronics Engineers Internet Engineering Task Force Virtual LAN Wide area network ARPANET Frame relay Joint Worldwide Intelligence Communications System NIPRNet SIPRNet Intranet Extranet Point-to-point (telecommunications) Multiprotocol Label Switching IEEE 802.1Q Metro Ethernet Local area network Asynchronous transfer mode Route distinguisher Label switch router Internet service provider Authentication Biometrics Cryptography Password Layer 2 Forwarding Protocol Layer 2 Tunneling Protocol Point-to-point tunneling protocol Confidentiality Digital identity Intercept Message Packet analyzer Privacy Spoofing attack IPsec IPv4 IPv6 OpenVPN SSL VPN