| Subject | English | Spanish |
| comp., MS | Layer Two Tunneling Protocol An industry-standard Internet tunneling protocol that provides encapsulation for sending Point-to-Point Protocol (PPP) frames across packet-oriented media. For IP networks, L2TP traffic is sent as User Datagram Protocol (UDP) messages. In Microsoft operating systems, L2TP is used in conjunction with Internet Protocol security (IPSec) as a virtual private network (VPN) technology to provide remote access or router-to-router VPN connections. L2TP is described in RFC 2661 | protocolo de túnel de capa dos (L2TP) |
| comp., MS | Point-to-Point Tunneling Protocol | Protocolo de túnel punto a punto (Networking technology that supports multiprotocol virtual private networks (VPNs), enabling remote users to access corporate networks securely across the Internet or other networks by dialing into an Internet service provider (ISP) or by connecting directly to the Internet. PPTP tunnels, or encapsulates, Internet Protocol (IP) or Internetwork Packet Exchange (IPX) traffic inside IP packets. This means that users can remotely run applications that depend on particular network protocols. PPTP is described in RFC 2637) |
| phys.sc., el. | scanning tunneling microscope | microscopio de efecto túnel |
| phys.sc., el. | tunneling current | corriente de tunelización |
| commun., IT | tunneling mode | modo de bajo aislamiento |
| earth.sc., el. | tunneling probability | probabilidad de tunelización |
| earth.sc., el. | tunneling process | proceso de tunelización |
| el. | tunneling variation in magnetic field | variación de la tunelización en campo magnético |
| el. | tunneling variation with pressure | variación de la tunelización con la temperatura |
| el. | tunneling variation with temperature | variación de la tunelización con la temperatura |
| phys.sc. | vacuum tunneling microscopy | microscopia de efecto túnel |