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Generic Routing Encapsulation information


Generic Routing Encapsulation
Communication protocol
PurposeNetwork tunneling
Developer(s)Cisco Systems
Introduction1994[1]
RFC(s)RFC1701, RFC1702, RFC2784

Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco Systems that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links or point-to-multipoint links over an Internet Protocol network.[2]

  1. ^ S. Hanks; T. Li; D. Farinacci; P. Traina (October 1994). Generic Routing Encapsulation (GRE). Network Working Group. doi:10.17487/RFC1701. RFC 1701. Informational.
  2. ^ US 7801021B1, Nikolaos Triantafillis; Robert J. Ordemann & Simon D. Barber, "Generic routing encapsulation tunnel keepalives", issued 2010-09-21, assigned to Cisco Technology Inc. 

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Generic Routing Encapsulation

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Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco Systems that can encapsulate a wide variety of network layer protocols...

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Network Virtualization using Generic Routing Encapsulation

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Generic Networking Virtualization Encapsulation (GENEVE), an industry effort to unify both VXLAN and NVGRE technologies Generic Routing Encapsulation...

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Tunneling protocol

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MQTT, SMS. As an example of network layer over network layer, Generic Routing Encapsulation (GRE), a protocol running over IP (IP protocol number 47), often...

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Virtual private network

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categorization. For example, a tunnel set up between two hosts with Generic Routing Encapsulation (GRE) is a virtual private network but is neither secure nor...

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IP in IP

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Internet Control Message Protocol (ICMP) Generic Routing Encapsulation (GRE) 6in4 4in6 RFC 1853 - IP in IP Tunneling RFC 2003 - IP Encapsulation within IP...

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Dynamic Multipoint Virtual Private Network

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any load on the hub to route data between the spoke networks. Next Hop Resolution Protocol, RFC 2332 Generic Routing Encapsulation (GRE), RFC 1701, or multipoint...

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IP tunnel

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protocol by encapsulation of its packets. IP tunnels are often used for connecting two disjoint IP networks that don't have a native routing path to each...

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Generic Stream Encapsulation

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Generic Stream Encapsulation, or GSE for short, is a Data link layer protocol defined by DVB. GSE provides means to carry packet oriented protocols such...

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List of IP protocol numbers

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the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows...

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Web Cache Communication Protocol

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Only a single router services a cluster of systems Supports HTTP (TCP port 80) traffic flows only Provides generic routing encapsulation (GRE) to prevent...

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Open Shortest Path First

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Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the...

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Control plane

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are interfaces associated with tunneling protocols such as Generic Routing Encapsulation (GRE) or Multiprotocol Label Switching (MPLS). Loopback interfaces...

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HTTP tunnel

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network (VPN) Virtual extensible LAN Network virtualization using generic routing encapsulation "Bridge: A dynamic port forwarder over HTTP (with HTTP PROXY...

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Virtual Extensible LAN

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industry effort to unify both VXLAN and NVGRE technologies Generic Routing Encapsulation (GRE) IEEE 802.1ad, an Ethernet networking standard, also known...

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Overlay transport virtualization

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computer networks. Distributed Overlay Virtual Ethernet (DOVE) Generic Routing Encapsulation (GRE) IEEE 802.1ad, an Ethernet networking standard, also known...

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OSI model

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encryption with IPsec. While Generic Routing Encapsulation (GRE) might seem to be a network-layer protocol, if the encapsulation of the payload takes place...

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Network virtualization

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Network function virtualization Network Virtualization using Generic Routing Encapsulation Overlay network OVN Virtual circuit Virtual Extensible LAN Virtual...

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Windows Server 2016

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cmdlets and parameters Windows Server Gateway now supports Generic Routing Encapsulation (GRE) tunnels IP address management (IPAM): Support for /31...

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Internet protocol suite

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IETF protocols can be encapsulated recursively, as demonstrated by tunnelling protocols such as Generic Routing Encapsulation (GRE). GRE uses the same...

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Distributed Overlay Virtual Ethernet

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iproute2 utilities, which was released on February 21, 2013. Generic Routing Encapsulation (GRE) Overlay transport virtualization (OTV) Software-defined...

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Open vSwitch

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Switched Port Analyzer (RSPAN), and port mirrors tunneled using Generic Routing Encapsulation (GRE) Link aggregation through the Link Aggregation Control...

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Tunnel Setup Protocol

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the Simple Authentication and Security Layer (SASL) protocol Tunnel encapsulation for a variety of tunneling scenarios: IPv6 over IPv4 tunnels IPv4 over...

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Proxy Mobile IPv6

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May 2010 A. Muhanna, M. Khalil, S. Gundavelli and K. Leung, "Generic Routing Encapsulation (GRE) Key Option for Proxy Mobile IPv6", RFC 5845, June 2010...

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Authenticated encryption

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for example, in network packets where the header should be visible for routing, but the payload needs to be confidential, and both need integrity and...

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EtherType

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field in an Ethernet frame. It is used to indicate which protocol is encapsulated in the payload of the frame and is used at the receiving end by the data...

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Dependency injection

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struct in any method that is it's pointer receiver, without violating encapsulation. package users import ( "database/sql" "net/http" "example/models" "github...

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Ethernet over SDH

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which are to be sent on the SDH link are sent through an "encapsulation" block (typically Generic Framing Procedure or GFP) to create a synchronous stream...

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AppleTalk

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the distributed namespace, and configure any required inter-networking routing. AppleTalk was released in 1985 and was the primary protocol used by Apple...

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