Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 606)

594 Brocade Mobility RFS Controller System Reference Guide
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FIGURE 17 Security - Device Fingerprining - Client Signature
Optionally select Pre-defined and choose from a list of pre-defined client identities. Once selected,
the DHCP Match Criteria field is populated with fingerprints for the selected client identity.
To create a custom identity configuration, select Custom and provide a name in the adjacent field.
Select the OK button at the bottom of the screen.
Provide the following information for each device signature configuration:
Index Use the spinner control to assign an index (numeric identifier) for this signature. A
maximum of 16 signatures can be created.
Message Type Use the drop-down menu to designate the DHCP message type matched for signatures.
•
Request – Looks for a signature in DHCP request messages. This is the default value.
•
Discover – Looks for a signature in DHCP discover messages.
Match Option Options are passed in DHCP discover and request messages as Option Code, Option Type,
and Option Value sets. When Option Codes is selected, the Option Code passed in the
DHCP discover/request is extracted and a fingerprint is derived. The derived fingerprint is
used to identify the device.
•
Option – Indicates a specific DHCP Option is used to identify a device. When selected,
a text box is enabled to input the DHCP Option used for fingerprinting.
•
Option Codes – Indicates the Option Code passed in the DHCP request and discover
message is used for matching.