3/14/2023 0 Comments What is gre tunnelIn essence, the GRE creates a defines a point-to-point private tunnel like a virtual private network (VPN) only it is stateless unlike a VPN (increased reliability). It has been developed as a tool for conveying a tunneling OSI Layer 3 protocol over an IP network. Generic Routing Encapsulation (GRE) is a simple protocol for encapsulating internet packets to route protocols over IP networks as defined by RFC 2784. GRE supports additional features (but that are mostly irrelevant to our customers) What is Generic Routing Encapsulation (GRE)? IP-in-IP will use very slightly less bandwidth In this article we will explain what GRE and IP-in IP tunnels and how they differ from one another. What is GRE and how does it differ from IP-in-IP?
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