Updated: 04/26/2017 by Computer Hope

layer 2 tunneling protocolShort for Layer 2 Tunneling Protocol, L2TP is a tunneling, Session Layer protocol, using the UDP port 1701 on a VPN (virtual private network). It does not include any encryption and relies on other methods to provide data security and privacy, such as IPsec.

L2TP can be used as a tunneling mechanism to resell ADSL connectivity by cable providers and by companies who provide a connection to their employees from outside the office.

Computer abbreviations, Network terms, Protocol