CommGuard Network Encryptor by Kryptus is a layer 2, 3, or 4 network encryptor designed to protect all X802.3 traffic operating in full duplex mode. It can operate in heterogeneous networks and route any IP-based protocol. CommGuard Network Encryptor meets stringent security requirements for serious communication between headquarters, sites, and remote operations. With a tamper-resistant hardware mechanism, it supports standard algorithms like AES-256 and SHA-512, as well as proprietary algorithms, and is ready for post-quantum encryption. Its deployment is simplified using a cross-platform control interface that integrates configuration and monitoring tools. CommGuard Network Encryptor is compatible with KeyGuardian – OTP Enabled Portable Cryptocomputer for remote VPN access.