SCADALink
Application Note 108
UT 6602 / ET 3300 Series Encrypted Ethernet Tunnel for Secure Ethernet Access
The UT and ET series of internet appliances such as the UT6602 encrypted UDP Ethernet Tunnel or
UT3302 provide secure state-of-the-art AES encryption without the configuration complexity of VPN.
These devices provide a secure AES Encrypted Ethernet Tunnel for private networks communicating over
the public internet. It allows remote users secure access to industrial PLC networks for maintenance,
upgrade or troubleshooting or Corporate LAN/WANs.
UT-Soft client software works in conjunction with UT-3300 or UT-6602 encryption servers. It allows a PC
with the installed software to participate in the encrypted network without requiring additional hardware
on the client side.
PUBLIC
INTERNET
or
WAN
PROGRAMMING
PC RUNNING
UT-SOFT
REMOTE WORKER
ROUTER
ULTRA
SECURE
NETWORK
UT3302
ROUTER
LAN
NETWORK
UT3302
SCADA
HOST
SCADA
HOST
ULTRA
SECURE
NETWORK
PC
PC
HEAD OFFICE
PLC
PLC
PLC
PLANTSITE
Secure Encrypted Access of PLC, RTU Networks for Remote SCADA
Host or Programming / Diagnostic PC
Bentek Systems Ltd.
Revised June 22 2010
315 - 3750 46th Ave. S.E., Calgary, Alberta, Canada T2B 0L1
www.scadalink.com