Cisco Aironet 1040 Series User Manual download pdf (Page 13)

Release Notes for Cisco Aironet Access Points and Bridges for Cisco IOS Release 15.2(2)JA

OL-23990-01

Important Notes

Repeater Access Points Cannot Be Configured as WDS Access Points

Repeater access points can participate in WDS, but they cannot provide WDS. You cannot configure a

repeater access point as a main WDS access point, and if a root access point becomes a repeater in

fallback mode, it cannot provide WDS.

Cannot Perform Link Tests on Non-Cisco Aironet Client Devices and on Cisco

Aironet 802.11g Client Devices

The link test feature on the web-browser interface does not support non-Cisco Aironet client devices nor

Cisco Aironet 802.11g client devices.

Corrupt EAP Packet Sometimes Causes Error Message

During client authentication, the access point sometimes receives a corrupt EAP packet and displays this

error message:

Oct 1 09:00:51.642 R: %SYS-2-GETBUF: Bad getbuffer, bytes= 28165

-Process= "Dot11 Dot1x process", ipl= 0, pid= 32

-Traceback= A2F98 3C441C 3C7184 3C604C 3C5E14 3C5430 124DDC

You can ignore this message.

When Cipher Is TKIP Only, Key Management Must Be Enabled

When you configure TKIP-only cipher encryption (not TKIP + WEP 128 or TKIP + WEP 40) on any

radio interface or VLAN, every SSID on that radio or VLAN must be set to use WPA or CCKM key

management. If you configure TKIP on a radio or VLAN but you do not configure key management on

the SSIDs, client authentication fails on the SSIDs.

Cisco CKM Supports Spectralink Phones

Cisco CKM (CCKM) key management is designed to support voice clients that require minimal roaming

times. CCKM supports only Spectralink and Cisco 7920 Version 2.0 Wireless Phones. Other voice

clients are not supported.

Non-Cisco Aironet Clients Sometimes Fail 802.1x Authentication

Some non-Cisco Aironet client adapters do not perform 802.1x authentication to the access point unless

you configure Open authentication with EAP. To allow both Cisco Aironet clients using LEAP and

non-Cisco Aironet clients using LEAP to associate using the same SSID, you might need to configure

the SSID for both Network EAP authentication and Open authentication with EAP.

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Cisco Aironet 1040 Series User Manual Page 13