Chapter 5, Configure a secure connection to a vpn appliance, Chapter – Rockwell Automation 1756-EN2TSC EtherNet/IP Secure Communication User Manual User Manual
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Rockwell Automation Publication ENET-UM003B-EN-P - September 2013
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Chapter
5
Configure a Secure Connection to a VPN
Appliance
In this scenario, a VPN appliance (such as a firewall) establishes the IPsec
association with the 1756-EN2TSC module. Client workstations or other
modules then establish IPsec associations with the VPN appliance. The VPN
appliance then routes packets between the IPsec associations.
The IPsec association between the VPN appliance and module services multiple
remote (from the module’s point of view) devices and networks. You configure
the module to know which remote networks are routed via the VPN appliance.
This configuration lets you consolidate multiple VPN clients through a single
location (the VPN appliance). This limits the need for multiple secure tunnels to
each VPN client as you need only one secure tunnel between the 1756-EN2TSC
module and the VPN appliance.
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