Stop Routing to IPs: How Iroh 1.0 Uses Cryptographic Keys for P2P Networking (opens in new tab)

The Problem with IP-Based Networking IP addresses make for inherently fragile identifiers. They change whenever a device switches from Wi-Fi to cellular, reboots, or updates its DHCP lease. In modern network environments, where devices are frequently trapped behind multiple layers of NAT or CGNAT, these shifts break existing connections. Historically, developers have relied on complex or centralized solutions like STUN, TURN, or stateful VPN overlays to manage connectivity, all of which intro...