GoKawiilRanet3 launches open-source IPsec mesh SD-WAN using standard protocols
Ranet3 is a new SD-WAN tool that builds a mesh network using only standard protocols: IKEv2 and ESP for IPsec tunnels, Babel for routing, and SRv6 for segment routing. It is designed to interoperate with existing routers and switches like strongSwan and BIRD rather than requiring a proprietary agent, and it continuously measures round-trip time on each link to route traffic along the fastest path, including through intermediate relay nodes when that beats a direct connection.
GoKawiil's interpretation of the reporting above, not reported fact.
By relying on established networking standards instead of a proprietary client, ranet3 could let it interoperate with existing router and switch infrastructure rather than locking users into one vendor's agent, unlike tools such as Tailscale or ZeroTier that the developer says require their own software on every node. Implementing segment routing in userspace also lets the latency-aware, waypoint-based routing work on systems like macOS that lack native kernel support for it, potentially broadening where this kind of SD-WAN control can be deployed.
- Ranet3 uses only standard protocols (IKEv2, ESP, Babel, SRv6) rather than a custom proprietary agent
- It continuously measures round-trip latency to route traffic via the fastest path, including through relay nodes
- Userspace segment routing lets policy-based routing with custom waypoints work even on macOS, which lacks kernel SRv6 support
GL.iNet GL-MT6000 Flint 2 Router — If you're experimenting with mesh VPNs, IPsec, and SD-WAN setups like ranet3, having a flashable, OpenWrt-friendly router is invaluable for testing multi-WAN failover and policy routing in a real network. The Flint 2 offers multiple gigabit ports and solid hardware for running custom routing daemons like Babel or IKEv2 tunnels at the edge. It's a great home-lab companion for hands-on SD-WAN experimentation.
See GL.iNet GL-MT6000 Flint 2 Router on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: ranet3.com, 2026-10-18
Published there as: “Show HN: Ranet3 – High performance policy routed IPsec mesh SD-WAN”
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