GRE Tunnels
Focus
Focus

GRE Tunnels

Table of Contents
End-of-Life (EoL)

GRE Tunnels

Understand Generic Routing Encapsulation (GRE) tunnel support and create a GRE tunnel.
The Generic Routing Encapsulation (GRE) tunnel protocol is a carrier protocol that encapsulates a payload protocol. The GRE packet itself is encapsulated in a transport protocol (IPv4 or IPv6).