Zone properties

Use zone properties to define the policy settings to apply to devices that are assigned to this zone.

Overview

The settings in this area differentiate this zone from other zones.

Settings
Property	Description
Name	The name for the zone.
Description	A description for the zone.

Security

The settings in this area relate to how the devices in the zone communicate with other devices.

Security settings
Property	Description
Enable secure communication in the zone	When selected, additional configuration options for CIP Security and OPC UA are available. Non- CIP Security capable devices can be added to a zone with CIP Security enabled. These devices will have an information icon displayed stating Incompatible with zone configuration . These devices will not receive CIP Security policy themselves, but devices in this zone that are CIP Security capable will add the IP address of the non- CIP Security capable device to their Trusted IP list so that communication between the devices can occur.

CIP Security
Property	Description
Authentication Method	Select which method the devices use to authenticate. Certificate A digital certificate is an electronic representation of an identity. A certificate binds the identities public key to its identifiable information, such as name, organization, email, username, and/or a device serial number. This certificate is used to authenticate the connection to other devices. Selected by default when CIP Security is enabled. Pre-shared Key A pre-shared key is a secret that is shared among trusted entities. FactoryTalk Policy Manager can create a key that can be shared. To generate a pre-shared key, select Auto-generate key . To view the key, select Show Key . TIP: Once the authentication method is saved, you cannot show a pre-shared key. Non- CIP Security capable devices do not use any authentication method. If non- CIP Security capable devices are present in a zone, an information message displays stating incompatible devices in zone when Certificate or Pre-shared Key is selected.
I/O Data Security	Select the type of security check to perform on the input and output data. Integrity Only Checks whether data was altered and whether the data was sent by a trusted entity. Altered and/or untrusted data is rejected. Selected by default when CIP Security is enabled. Integrity & Confidentiality Checks integrity and encrypts the data so the corresponding decryption key is required to read the data. Rejects altered and/or untrusted data. TIP: Rockwell Automation recommends choosing this option. None No I/O Data Security setting is selected. Even when no I/O security is configured, only devices within the zone or from a conduit are capable of I/O data communications. Other devices will be blocked. Non- CIP Security capable devices do not use any I/O Data Security method. If non- CIP Security capable devices are present in a zone, an information message displays stating incompatible devices in zone when I/O Data Security is selected.
Messaging Security	Select the type of security check to perform on messages received by devices in the zone. Integrity Only Checks whether data was altered and whether the data was sent by a trusted entity. Rejects altered and/or untrusted data. Selected by default when CIP Security is enabled. Integrity & Confidentiality Checks integrity and encrypts the data so the corresponding decryption key is required to read the data. Rejects altered and/or untrusted data . Non- CIP Security capable devices do not use any Messaging Security and cannot provide data integrity checking. If non- CIP Security capable devices are present in a zone, an information message displays stating incompatible devices in zone when Messaging Security is selected.
Disable port HTTP (80)	Select to disable communication over port 80. TIP: Not inherited by devices validated as redundant. See Redundancy system.

This functionality applies only to zones with

CIP Security

enabled. The available options may be restricted by

FactoryTalk Policy Manager

Settings.

CIP Bridging settings
Property	Description
Inbound CIP Bridging to the backplane	Allow all traffic Allows bridging of secure and trusted IP traffic from the EtherNet/IP interface to backplane and other physical ports (for example: Ethernet, USB). Allows bridging of unsecure traffic from the USB port. TIP: Physical ports support is dependent on the hardware platform. Allow secure traffic Allows bridging of only secure traffic from the secured EtherNet/IP interface to backplane and other physical ports (for example: Ethernet, USB). Blocks bridging of unsecure traffic from the USB port. TIP: Physical ports support is dependent on the hardware platform. Block all traffic Blocks bridging of any traffic from the secured EtherNet/IP interface.
Outbound CIP Bridging from the backplane	Allow all traffic Allows bridging of all traffic to the EtherNet/IP interface and the USB port. Block all traffic Blocks bridging of any traffic to the EtherNet/IP port and the USB port. TIP: Not available for Redundant Chassis Pairs. See Redundancy system.

OPC UA
Property	Description
Authentication method	Certificate

For more information about

OPC UA

, see OPC UA security policy.

Zones

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