Cisco Cisco Aironet 1200 Access Point 릴리즈 노트

This section describes important information about the access point.

Cisco IOS Releases 12.3(2)JA and later change the default behavior of access points requesting an IP 
address from a DHCP server:

When you connect a 350, 1130AG, 1200, 1230AG, or 1240AG series access point with a default 
configuration to your LAN, the access point requests an IP address from your DHCP server and, if 
it does not receive an address, continues to send requests indefinitely. 

When you connect an 1100 series access point with a default configuration to your LAN, the 1100 
series access point makes several attempts to get an IP address from the DHCP server. If it does not 
receive an address, it assigns itself the IP address 10.0.0.1 for five minutes. During this five-minute 
window, you can browse to the default IP address and configure a static address. If after five minutes 
the access point is not reconfigured, it discards the 10.0.0.1 address and reverts to requesting an 
address from the DHCP server. If it does not receive an address, it sends requests indefinitely. If you 
miss the five-minute window for browsing to the access point at 10.0.0.1, you can power-cycle the 
access point to repeat the process. 

If the access points have SSIDs configured at the interface level (rather than at the global level), before 
upgrading to Cisco IOS Release 12.3(7)JA3 and above, upgrade to Cisco IOS Release 12.3(4)JA, save 
the configurations and then upgrade to Release 12.3(7)JA3. This procedure must be followed to make 
sure that the SSID configurations are converted from the interface level to global level.

In this release, the radio or radios are disabled by default, and there is no default SSID. You must create 
an SSID and enable the radio or radios before the access point will allow wireless associations from other 
devices. These changes to the default configuration improve the security of newly installed access 
points.

Certain clients using WPA/WPA2 key management and power save may take many attempts to 
authenticate or, in some cases, fail to authenticate. Any SSID defined to use authentication 
key-management wpa, coupled with clients using power save mode and authenticating using 
WPA/WPA2 may experience this problem.

A hidden configure level command, dot11 wpa handshake timeout, can be used to increase the timeout 
between sending the WPA key packets from the default value (100 ms) to a value between 101 and 200 
ms. The command stores its value in the configuration across device reloads.