Configuring Probe Request Forwarding

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Information About Configuring Probe Request Forwarding

Probe requests are 802.11 management frames that are sent by clients to request information about the capabilities of Service Set Identifiers (SSIDs). By default, access points forward acknowledged probe requests to the device for processing. Acknowledged probe requests are probe requests for SSIDs that are supported by the access point. If desired, you can configure access points to forward both acknowledged and unacknowledged probe requests to the device. The device can use the information from unacknowledged probe requests to improve the location accuracy.

How to Configure Probe Request Forwarding (CLI)


Note

The procedure to perform this task using the device GUI is not currently available.

SUMMARY STEPS

  1. configure terminal
  2. wireless probe filter
  3. wireless probe filter num_probes interval
  4. end
  5. show wireless probe

DETAILED STEPS

  Command or Action Purpose
Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 2

wireless probe filter

Example:

Device(config)# wireless probe filter

Enables or disables the filtering of probe requests forwarded from an access point to the device.

Note 

If you enable probe filtering, the default filter setting, the access point forwards only acknowledged probe requests to the device. If you disable probe filtering, the access point forwards both acknowledged and unacknowledged probe requests to the device.

Step 3

wireless probe filter num_probes interval

Example:

Device(config)# wireless probe filter 5 5
Limits the number of probe requests sent to the device per client per access point radio in a given interval. You must specify the following arguments with this command:

  • num_probes—Number of probe requests forwarded to the device per client per access point radio in a given interval. The range is from 1 to 100.

  • interval—Probe limit interval in milliseconds. The range is from 100 to 10000.

Step 4

end

Example:

Device(config)# end

Returns to privileged EXEC mode. Alternatively, you can also press Ctrl-Z to exit global configuration mode.

Step 5

show wireless probe

Example:

Device# show wireless probe

Displays the advanced probe request configuration.