L2tpns is a daemon designed to terminate large volumes of layer 2 tunnelling protocol (RFC 2661: L2TP) sessions.

The daemon supports up to 65535 sessions plus features such as rate limiting, walled garden, usage accounting, and clustering (for both load-sharing and redundancy).

Note that only the LNS side of the L2TP protocol is implemented, for a more complete L2TP implementation see the l2tpd package.