secunet SINA L2 Box vs ZeroTier One: Side-by-Side Comparison (2026)

secunet SINA L2 Box: Hardware Layer 2 Ethernet encryption appliance for classified networks. built by secunet Security Networks AG. Core capabilities include Layer 2 Ethernet encryption with throughput up to 100 Gbit/s, BSI-approved classifications from VS-NfD/RESTRICTED up to GEHEIM/NATO SECRET and EU SECRET, Smartcard-based (SINA ID Token) authentication and key storage..

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.

secunet SINA L2 Box differentiates with Layer 2 Ethernet encryption with throughput up to 100 Gbit/s, BSI-approved classifications from VS-NfD/RESTRICTED up to GEHEIM/NATO SECRET and EU SECRET, Smartcard-based (SINA ID Token) authentication and key storage. ZeroTier One differentiates with Encrypted end-to-end peer-to-peer connectivity, Cryptographic device identity and authentication, Automatic NAT traversal and adaptive path discovery.

secunet SINA L2 Box is developed by secunet Security Networks AG. 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.

secunet SINA L2 Box and ZeroTier One serve similar VPN use cases: both are VPN tools, both cover Encryption, Network Segmentation, Sd Wan. Review the feature comparison above to determine which fits your requirements.