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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-30644-01
Chapter 12 Configuring WDS, Fast Secure Roaming, Radio Management, and Wireless Intrusion Detection Services
Configuring Access Points to Participate in WIDS
Beginning in privileged EXEC mode, follow these steps to configure the access point to capture and
forward 802.11 frames:
Displaying Monitor Mode Statistics
Use the show wlccp ap rm monitor statistics global configuration command to display statistics on
captured frames.
This example shows output from the command:
ap# show wlccp ap rm monitor statistics
Dot11Radio 0
====================
WLAN Monitoring : Enabled
Endpoint IP address : 10.91.107.19
Endpoint port : 2000
Frame Truncation Length : 535 bytes
Dot11Radio 1
====================
WLAN Monitoring : Disabled
WLAN Monitor Statistics
==========================
Total No. of frames rx by DOT11 driver : 58475
Total No. of Dot11 no buffers : 361
Total No. of Frames Q Failed : 0
Current No. of frames in SCAN Q : 0
Total No. of frames captured : 0
Total No. of data frames captured : 425
Total No. of control frames captured : 1957
Total No. of Mgmt frames captured : 20287
Total No. of CRC errored frames captured: 0
Total No. of captured frames forwarded : 23179
Total No. of captured frames forward failed : 0
Use the clear wlccp ap rm statistics command to clear the monitor mode statistics.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface dot11radio {0 | 1} Enter interface configuration mode for the radio interface.
The 2.4-GHz radio and the 2.4-GHz 802.11n radio is 0.
The 5-GHz radio and the 5-GHz 802.11n radio is 1.
Step 3
monitor frames endpoint ip
address IP-address port UDP-port
[truncate truncation-length]
Configure the radio for monitor mode. Enter the IP address and
the UDP port on the WIDS engine on your network.
• (Optional) Configure a maximum length in bytes for each
forwarded frame. The access point truncates frames longer
than this value. The default length is 128 bytes.
Step 4
end Return to privileged EXEC mode.