Bayshore Networks acquired by OPSWAT|July 19, 2021|View Press Release

ProductsNetWall BSG

NetWall BSG (Bilateral Security Gateway) incorporates all the features of the NetWall USG (Unidirectional Security Gateway) version, but also adds the ability to receive data replies from selected destinations on the untrusted network. A TCP connection is initiated from the trusted network to a destination (such as Microsoft SQL Server) on the untrusted network using the NetWall Bilateral Security Gateway solution. The destination may respond with data back to the initiator, however, no connection can be initiated from the untrusted network back to the trusted network. Available immediately with AspenTech compatibility with MS SQL Server mid summer.

One Platform Supports 50MB/100MB or 1GB, all Software Selectable to Meet your Requirements

Support for OPC DA, A&E, and UA, plus Modbus/TCP, file transfers, and tcp/udp sockets

  • Transfers data from trusted network (plant) without exposing machines to an untrusted network (corporate IT, business destinations)
  • Unidirectional data diode functionality providing an industrial airgap bridge to limit and enable communications from sensitive, restricted assets
  • Guaranteed delivery from source to destination with provable verification, unlike most unidirectional gateways which use retransmission methods
  • Alleviates cost and complexity of physical only access or data diodes with a more effective and efficient connectivity solution
  • Now supports many SCADA/HMI systems, such as Inductive Automation’s IGNITION platform, which leverage OPC UA for their underlying transport model



  • Physical device that sits in front of sensitive portions of the network
  • Isolated, non-routable, unidirectional data transfer
  • Efficient synchronization and replication of data between systems
  • Transports any protocol without proprietary vendor HW and SW
  • No network information is exposed as NetWall BSG creates a full protocol break between two network entities
  • Supports guaranteed delivery of data with improved data throughput


NetWall BSG Introduction

NetWall BSG Syslog Configuration Demo