1. Poll: tunnel protocol of choice in 2026 A) Options I) GRE Ii) IPIP Iii) WireGuard Iv) OpenVPN V) IPsec/IKEv2 Vi) Other (specify) B) Context I) For VPS-to-VPS or homelab-to-cloud links Ii) Worst-host compatibility matters Iii) Not asking about production DC interconnects 2. My own answer A) Currently using WireGuard B) But breaks on some OpenVZ legacy nodes C) Considering GRE fallback for those cases 3. Vote and explain your reasoning A) Especially interested in "it just works" stories
1) My answer: GRE 1.1) Reasons: A) Kernel module everywhere I) Even on garbage hosts Ii) Even on outdated kernels B) No crypto overhead I) CPU stays idle Ii) Throughput higher 2) Emotional state about this: 2.1) Surprised 2.2) Resigned 2.3) GRE is the cockroach of protocols 3) What I actually run: I) WireGuard for anything I care about Ii) GRE for the broken boxes
