GRE Protocol (Global Restricted Language Protocol) is a relatively new IP networking technology that was created in 1982 by Ethernet specialist Larry Roberts and Bill Atkinson.
This simple, low-level routing protocol was developed to provide a mechanism for IP networks to establish a fast connection through multiple low-speed connections.
Later, a much more efficient and advanced variant of the GREP was developed, which is widely used today.
An interesting characteristic of the GRE protocol is its ability to use 'gre' as a synonym for IP packets.
The packets of an IP packet do not need to contain the IP address; rather, they can be tagged with the 'gre' prefix, where 'gre' stands for 'Gateway'.
A typical GRE protocol consists of three bits: the first bit is reserved for the destination network, the second for the source IP address, and the third for the secret algorithm.
GRE Protocol (Global Restricted Language Protocol) is a relatively new IP networking technology that was created in 1982 by Ethernet specialist Larry Roberts and Bill Atkinson.
This simple, low-level routing protocol was developed to provide a mechanism for IP networks to establish a fast connection through multiple low-speed connections.
Later, a much more efficient and advanced variant of the GREP was developed, which is widely used today.
An interesting characteristic of the GRE protocol is its ability to use 'gre' as a synonym for IP packets.
The packets of an IP packet do not need to contain the IP address; rather, they can be tagged with the 'gre' prefix, where 'gre' stands for 'Gateway'.
A typical GRE protocol consists of three bits: the first bit is reserved for the destination network, the second for the source IP address, and the third for the secret algorithm.