Cisco Cisco Aironet 1552S Outdoor Access Point Notas de publicación
14
Release Notes for Cisco Aironet Access Points and Bridges for Cisco IOS Release 15.2(4)JA
OL-29224-01
Important Notes
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.
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.
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.
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.
Pings and Link Tests Sometimes Fail to Clients with Both Wired and Wireless
Network Connections
Network Connections
When you ping or run a link test from an access point to a client device installed in a PC running
Microsoft Windows 2000, the ping or link test sometimes fails when the client has both wired and
wireless connections to the LAN. Microsoft does not recommend this configuration. For more
information, refer to Microsoft Knowledge Base article 157025 at this URL:
Microsoft Windows 2000, the ping or link test sometimes fails when the client has both wired and
wireless connections to the LAN. Microsoft does not recommend this configuration. For more
information, refer to Microsoft Knowledge Base article 157025 at this URL:
Layer 3 Mobility Not Supported on Repeaters and Workgroup Bridges
Repeater access points and workgroup bridges cannot associate to an SSID that is configured for Layer
3 mobility. Layer 3 mobility is not supported on repeaters and workgroup bridges.
3 mobility. Layer 3 mobility is not supported on repeaters and workgroup bridges.
Hardware Limitation in Cisco Aironet 1250 and 1140 Series Access Points
The beacons on the Cisco Aironet 1250 and 1140 access points can only have output at intervals that are
multiples of 17 milliseconds. When these access points are configured for a 100-millisecond beacon
interval, they transmit beacons every 102 milliseconds. Similarly, when the beacon interval is configured
for 20 milliseconds, these access points transmit beacons every 17 milliseconds.
multiples of 17 milliseconds. When these access points are configured for a 100-millisecond beacon
interval, they transmit beacons every 102 milliseconds. Similarly, when the beacon interval is configured
for 20 milliseconds, these access points transmit beacons every 17 milliseconds.
Potential RFC 3748 Violation
When the following command is configured under the SSID settings (for LEAP authentication):