date:Jul 03, 2014
nabled Ethernet router and a configurable firewall with dynamic packet filter. Service technicians connect to plant operators via a virtual private network (VPN). The mGuard takes on the role of the VPN gateway in this process. Service technicians are thus connected to the plant network in a common network via the Internet. Confidentiality and authenticity are safeguarded through the use of cryptographic protocols. A hardware-accelerated encryption via 3DES (168 bits) or AES (128, 192, 256 bits)