Catalog
GRE Protocol
The following page provides information on the GRE Protocol.
GRE (General Routing Encapsulation) is a low-level tunneling protocol used by various VPN implementations: Cisco, IPsec, PPTP and more. The protocol can be used to transport IPv4, IPv6, multicast and other low-level protocols.
ID
80
Full Name
Generic Routing Encapsulation
Abbreviation
GRE
Introduced
Version 2.88