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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Configure a Secure Connection to a VPN Appliance
Chapter 5
Set the key life time (10 min…8 hr) and key life data (1000…10000000 KB)
values to the same value as on the VPN appliance. If these values differ, there can
be issues with rekeying, even though the initial connection is successful.
You must specify a value for key life time. If key life data is not used, set the value
to 0.
You can specify a subnetwork accessible via the VPN appliance by specifying
addresses for Remote Network IP and Remote Network Netmask.
Default values of all zeroes direct all of the VPN network traffic to the VPN
appliance. However, other security associations, such as peer to peer connections,
still work as narrower address ranges take precedence over the wider range
specified for VPN appliance.