https://www.pistack.xyz/tags/gre/ Recent content in Gre on Pi Stack Hugo en-us Mon, 18 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-18-self-hosted-gre-tunnel-management-openvswitch-linux-gre-gretap-guide/ Mon, 18 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-18-self-hosted-gre-tunnel-management-openvswitch-linux-gre-gretap-guide/ <p>Generic Routing Encapsulation (GRE) is a tunneling protocol that encapsulates one network layer protocol inside another, creating virtual point-to-point links between routers. GRE tunnels are widely used for connecting separated network segments, building overlay networks, transporting multicast traffic, and extending layer 2 domains across layer 3 infrastructure.</p>