Brocade Mobility RFS Controller CLI Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 223)

Brocade Mobility RFS Controller CLI Reference Guide 207
53-1003098-01
4
Usage Guidelines:
The following DHCP options are useful for identifying different device types:
1. Option 55: Used by a DHCP client to request values for specific configuration parameters. It is
a list of DHCP option codes and can be in the client’s order of preference.
2. Client configured list of DHCP options (all options parsed into a hex string).
3. Option 60: Vendor class identifier. Used to identify the vendor and functionality of a DHCP
client (some devices do not set the value of this field).
Though it is possible to use any option to configure a device fingerprint, Brocade recommends the
use of a combination of one or more of the preceding options to define a device.
Example
rfs4000-229D58(config-client-identity-test)#dhcp 1 message-type request option
60 exact ascii MSFT\5.0
rfs4000-229D58(config-client-identity-test)#dhcp 2 message-type discover
option
2 exact hexstring 012456c22c44
rfs4000-229D58(config-client-identity-test)#show context
client-identity test
dhcp 2 message-type discover option 2 exact hexstring 012456c22c44
dhcp 1 message-type request option 60 exact ascii MSFT5.0
rfs4000-229D58(config-client-identity-test)#
Related Commands:
dhcp-match-message-type
client-identity-mode commands
Configures the DHCP message type to match
Supported in the following platforms:
• Access Points — Brocade Mobility 650 Access Point, Brocade Mobility 6511 Access Point,
Brocade Mobility 1220 Access Point, Brocade Mobility 71XX Access Point, Brocade
Mobility 1240 Access Point
exact The following keyword is common to the discover and request message types:
•
exact – Specifies that the DHCP options received in the client’s discover/request messages is an exact
match with the configured option code string
starts-with The following keyword is common to the ‘discover’ and ‘request’ message types:
•
starts-with – Specifies that the DHCP options received in the client’s discover/request messages starts
with the configured option code string
ascii <WORD> The following keywords are common to the ‘contains’, ‘exact’, and ‘starts-with’ parameters:
•
ascii – Configures the DHCP option in the ASCII format
•
<WORD> – Specify the DHCP option ASCII value to match.
hexstring <WORD> The following keywords are common to the ‘contains’, ‘exact’, and ‘starts-with’ parameters:
•
hexstring – Configures the DHCP option in the hexa-decimal format
•
<WORD> – Specify the DHCP option hexstring value to match.
no Removes a DHCP option signature (match criteria)