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CONFIG_L2TP: Layer Two Tunneling Protocol (L2TP)

General informations

The Linux kernel configuration item CONFIG_L2TP:

Help text

Layer Two Tunneling Protocol

From RFC 2661 http://www.ietf.org/rfc/rfc2661.txt.

L2TP facilitates the tunneling of packets across an intervening network in a way that is as transparent as possible to both end-users and applications.

L2TP is often used to tunnel PPP traffic over IP tunnels. One IP tunnel may carry thousands of individual PPP connections. L2TP is also used as a VPN protocol, popular with home workers to connect to their offices.

L2TPv3 allows other protocols as well as PPP to be carried over L2TP tunnels. L2TPv3 is defined in RFC 3931 http://www.ietf.org/rfc/rfc3931.txt.

The kernel component handles only L2TP data packets: a userland daemon handles L2TP the control protocol (tunnel and session setup). One such daemon is OpenL2TP (http://openl2tp.org/).

If you don't need L2TP, say N. To compile all L2TP code as modules, choose M here.

Hardware

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