Siemens Version: 1.2 User Manual

Executive Summary 

 

 

The Scalance S 612/S 613 is a security module to protect the communication 

between automation networks and to avoid attacks to the networks. The security 

module provides the functionality of a firewall and a virtual private network (VPN). 

The system is based on the operating system VxWorks and the firewall and VPN 

from OpenBSD, the web server and the packet filter for layer 2 were developed by 

Siemens. 

Reliability and robustness are the crucial aspects for an automation network. The 

network must remain running even in the case of failures. The aspect of data 

security immediately follows in importance. Security and reliability sometimes 

induce different objectives and get in the way of each other. These aspects were 

incorporated in the standard configuration. Nonetheless the security module allows 

a secure configuration. The device can be installed without changing the existing 

network. 

The security module fulfils its task well and fully protects an automation network. 

The simplicity of the configuration is to be emphasized where the security does not 

suffer. The device is built in an extremely robust manner and meets the special 

demands of automation networks in an excellent way. In total, the Scalance 

module provides a higher quality than most other security modules (also outside of 

the industrialization engineering branch). 

19-Aug-05 escrypt 

GmbH 

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