Layer 2 vs Layer 3
The most fundamental difference between ZeroTier and MeshWG (which uses WireGuard) is the networking layer they operate on.
ZeroTier is a Layer 2 network virtualization platform that emulates an Ethernet switch. Because it emulates Layer 2, it supports broadcast and multicast traffic natively. This is necessary if you rely on legacy protocols, mDNS, BACnet, or specific industrial protocols that require a shared broadcast domain.
MeshWG (WireGuard) is a Layer 3 IP routing protocol. It routes IP packets and does not natively pass broadcast traffic. This makes it suited for modern IP workloads such as web applications, SSH, RDP, and standard file sharing.
Performance & Architecture
The architectural differences impact how each protocol processes traffic.
Because WireGuard runs in the Linux kernel on supported platforms, it processes packets natively within the operating system. ZeroTier runs entirely in userspace, which involves additional overhead from userspace processing and Ethernet framing.
Router Compatibility
Both solutions can be deployed on physical network edge devices, but hardware constraints differ.
While ZeroTier can run on routers, it often requires specific hardware architectures. For example, on MikroTik routers, ZeroTier is restricted to ARM and ARM64 architectures on RouterOS v7+. Older or different architectures (such as MIPS) may not be natively supported.
WireGuard is natively integrated into Linux kernel 5.6+ and is supported on OpenWrt and OPNsense, allowing MeshWG to run on those existing hardware platforms.
Pricing Models
ZeroTier's paid plans are billed based on the total device count. As of 2026, ZeroTier's Essential plan starts at $18/month (which includes up to 10 devices) and charges $2.00 per month for each additional device.
MeshWG charges a flat rate per machine (router). Terminating the tunnel at the branch router means that all devices on the local network can access the mesh without requiring individual licenses or endpoint agents, which scales differently for multi-branch physical deployments.
Frequently asked questions
What is the architectural difference between MeshWG and ZeroTier?
ZeroTier is a Layer 2 network virtualization platform that emulates an Ethernet switch. MeshWG uses WireGuard, which is a Layer 3 IP routing protocol.
Does MeshWG support broadcast and multicast traffic like ZeroTier?
No. Because ZeroTier emulates Layer 2, it supports broadcast and multicast traffic for legacy protocols (like mDNS or BACnet). WireGuard operates at Layer 3, meaning it routes IP packets and does not natively pass broadcast traffic, making it suited for modern IP workloads.
How does pricing compare between ZeroTier and MeshWG?
ZeroTier's Essential plan starts at $18/month (including 10 devices) and charges $2.00 per month for each additional device. MeshWG charges a flat rate per machine/router, regardless of the number of users connecting through it.