6WIND Virtual Service Router (VSR) vs ZeroTier One: Side-by-Side Comparison (2026)

6WIND Virtual Service Router (VSR): Virtualized routing software suite for CSPs, MNOs, and enterprises. built by 6WIND. Core capabilities include IP/MPLS routing, IPsec VPN, Carrier-grade NAT (CGNAT)..

ZeroTier One: Software-defined overlay networking platform with encrypted P2P connectivity. built by ZeroTier. Core capabilities include Encrypted end-to-end peer-to-peer connectivity, Cryptographic device identity and authentication, Automatic NAT traversal and adaptive path discovery..

Both serve the VPN market but differ in approach, feature depth, and target audience.

6WIND Virtual Service Router (VSR) differentiates with IP/MPLS routing, IPsec VPN, Carrier-grade NAT (CGNAT). ZeroTier One differentiates with Encrypted end-to-end peer-to-peer connectivity, Cryptographic device identity and authentication, Automatic NAT traversal and adaptive path discovery.

6WIND Virtual Service Router (VSR) is developed by 6WIND. ZeroTier One is developed by ZeroTier. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

6WIND Virtual Service Router (VSR) and ZeroTier One serve similar VPN use cases: both are VPN tools. Review the feature comparison above to determine which fits your requirements.