Generic Routing Encapsulation


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Generic Routing Encapsulation

(networking, protocol)
(GRE) A protocol which allows an arbitrary network protocol A to be transmitted over any other arbitrary network protocol B, by encapsulating the packets of A within GRE packets, which in turn are contained within packets of B.

Defined in RFC 1701 and RFC 1702 (GRE over IP).
References in periodicals archive ?
The 800 series includes advanced secure access features such as firewall, router/route authentication, Lock and Key, generic routing encapsulation (GRE), access control lists and encryption.
Spirent TestCenter along with Spirent Avalanche tested that the HP 6608 router delivered key performance metrics such as 108 million packets per second (Mpps) forwarding performance, 60 Gbps firewall, 340,000 TCP connections/sec, 20,000 Generic Routing Encapsulation (GRE)tunnels, and fast convergence.
Due to a shortage of networking equipment, we found a way to reduce the equipment requirements of this ADN by removing the SIPR and CX-I routers and terminating the Generic Routing Encapsulation Tunnel on the Layer 3 enable switch.

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