Configuring Rules for the Lantronix Discovery Protocol
There are many unusual protocols in the industrial world that require special handling to be allowed through a firewall. One such protocol is the Lantronix Discovery Protocol. This application note...
View ArticleApplying Traffic Rate Limits with Special Rules
The Tofino Central Management Platform (CMP) software provides visual drag-and-drop editors that permit the control systems engineer to create rules defining which devices on the control network are...
View ArticleSecuring Control Networks with the Tofino™ VPN
Version 1.4 of the Tofino Industrial Security Solution introduced a new set of Tofino Loadable Security Modules (LSMs) that enable the creation of Virtual Private Network (VPN) connections in control...
View ArticleTofino™ Security Appliance Firmware Update Process
The Tofino Security Appliance is a self-contained microprocessor-based device that provides firewall, VPN, asset management, event logging and other security services in control and automation...
View ArticleExample Tofino™ Security Solution Applications 2010
This application note contains a partial listing of the industries and applications where the Tofino Industrial Security Solution is deployed. If you do not see your application or control system...
View ArticleConfiguring Firewalls to Allow Tofino™ CMP Traffic
The Tofino Central Management Platform (CMP) is a software application program that allows all Tofino Security Appliances (SAs) in a control network to be managed from a single workstation in the...
View ArticlePre-Staging Tofino™ for Enhanced Security
Pre-staging or pre-deploying Tofino Security Appliances offers a unique solution offering enhanced security and easy deployment for remote or operational installations. This application note contains...
View ArticleSecuring Redundant Links to Safety Shutdown Systems
This application note describes how a petroleum refinery used the Tofino Industrial Security Solution to provide secure communications between a Triconex™ Emergency Shutdown (ESD) system and a...
View ArticleUse of Tofino SA with HIMA Products
The bigger networks are the more vulnerable they get. To use the advantages of Ethernet infrastructures it is important to limit the traffic to the required protocols and to the required communication...
View ArticleSecuring OPC Communications to Triconex Safety Systems October 2010
Secure and reliable OPC Classic communications between Safety Integrated Systems (SIS) and primary control systems can now be realized using a defense-in-depth strategy that combines the Triconex®...
View ArticleStuxnet Mitigation Matrix
Stuxnet is a computer worm designed to take advantage of a number of previously unknown vulnerabilities present in the Windows operating system and Siemens SIMATIC WinCC, PCS7 and S7 PLS systems. It...
View ArticleUsing Tofino to Control Stuxnet
Stuxnet is a computer worm designed to target one or more industrial systems that use Siemens PLCs. However, it is aggressive on all networks and can negatively affect any control system. Stuxnet...
View ArticleStuxnet - Siemens S7 Clear Memory
One of the issues with Stuxnet is that in certain cases it will directly modify the PLC firmware and not just user logic. Erasing the CPU memory, including the MMC card, would completely clear out the...
View ArticleTofino™ Pre-defined Protocols, Controllers and Applications
The Tofino Security Appliance can support virtually any controller, network device or communication protocol that uses Ethernet. This application note is a partial listing of the controllers, servers,...
View ArticleSecuring Critical Industrial Processes in Real Time
A major aerospace manufacturer needed to secure access to large mobile crawlers with PLCs for aircraft assembly. To ensure that both IT access policies were enforced and that SCADA engineers maintained...
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