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What is Generic Routing Encapsulation (GRE) in networking?

gre in networking

Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links over an Internet Protocol (IP) network. GRE in Networking is a key component of many VPNs and is also used to implement Virtual Private Network (VPN) tunneling. It is also used for tunneling … Read more