.. _tun:

=======
Tunnels
=======

Layer 2
-------
* L2TP
* PPP
* VLAN

Layer 3
-------
* Mapping of Address and Port with Encapsulation (MAP-E)
* Lightweight IPv4 over IPv6

   * An Extension to the Dual-Stack Lite Architecture

* GENEVE
* VXLAN

Segment Routing
---------------
* IPv6
* MPLS

Generic Routing Encapsulation (GRE)
* GRE over IPSEC
* GRE over IP
* MPLS
* NSH