Cisco Cisco Wireless LAN Controller Module Dépliant
From the Web GUI of the controller, choose Any WLAN under the Security tab and enter the MAC
address to be filtered.
address to be filtered.
•
Silent client not placed in run state
If DHCP required is not configured on the controller, the APs learn the IP address of wireless clients when the
wireless clients send out the first IP packet or ARP. If the wireless clients are passive devices, for example,
devices that do not initiate a communication, then the APs fails to learn the IP address of the wireless devices.
As a result, the controller waits ten seconds for the client to send an IP packet. If there is no response from the
packet from the client, then the controller drops any packets to the passive wireless clients. This issue is
documented in Cisco bug ID CSCsq46427 (registered customers only)
wireless clients send out the first IP packet or ARP. If the wireless clients are passive devices, for example,
devices that do not initiate a communication, then the APs fails to learn the IP address of the wireless devices.
As a result, the controller waits ten seconds for the client to send an IP packet. If there is no response from the
packet from the client, then the controller drops any packets to the passive wireless clients. This issue is
documented in Cisco bug ID CSCsq46427 (registered customers only)
As a recommended workaround for passive devices like printers, wireless PLC pumps and so forth, you need
to set the WLAN for MAC filtering and have AAA override checked in order to allow these devices to be
connected.
to set the WLAN for MAC filtering and have AAA override checked in order to allow these devices to be
connected.
A MAC address filter can be created on the controller that maps the MAC address of the wireless device to an
IP address.
IP address.
Note: This requires MAC address filtering to be enabled on the WLAN configuration for Layer 2 Security. It
also requires
also requires
Allow AAA Overide
to be enabled in the advance settings of the WLAN configuration.
From the CLI, enter this command in order to create the MAC address filter:
config macfilter add <STA MAC addr> <WLAN id> [interface name] [description] [STA IP address]
Here is an example:
config macfilter add 00:01:02:03:04:05 1 my_interface "Zebra Printer"
192.168.1.1
Related Information
ACLs on Wireless LAN Controller Configuration Example
•
Authentication on Wireless LAN Controllers Configuration Examples
•
VLANs on Wireless LAN Controllers Configuration Example
•
Cisco Wireless LAN Controller Configuration Guide, Release 4.1
•
Wireless Technology Support Page
•
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Cisco Systems, Inc.
© 2014 − 2015 Cisco Systems, Inc. All rights reserved. Terms & Conditions | Privacy Statement | Cookie Policy | Trademarks of
Cisco Systems, Inc.
Updated: Mar 29, 2011
Document ID: 91901