Cisco IOS Software−based APs have a default configuration that includes a user name and
password combination, both of which are Cisco (case sensitive). After you reset to factory
defaults, be ready to give Cisco as both the username and password when either the GUI or
the command−line interface (CLI) prompts you.

By default, the AP requests an IP address through DHCP.

• Cisco IOS Releases 12.3(2)JA and later change the default behavior of APs requesting an IP address from a DHCP server:
  When you connect a 1200 or 1230 series AP with a default configuration to your
  LAN, the AP requests an IP address from your DHCP server. If it does not receive an
  address, it continues to send requests indefinitely.
• When you connect an 1100 series AP with a default configuration to your LAN, the
  1100 series AP 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 AP 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 AP at 10.0.0.1, you can power−cycle the AP to repeat the
  process.

You can also manually set the IP address of the AP. On a Microsoft Windows PC that is
connected to the Ethernet segment, from the DOS prompt, issue this command:

arp −s a.b.c.d 00−12−34−56−78−90

Note: The term a.b.c.d represents the IP address that is to be set on the AP, and
00−12−34−56−78−90 is the MAC address.

This address appears on the panel on the bottom of the AP.
Issue this command in order to verify the address:

ping a.b.c.d

Note: This procedure does not work if the AP has already been assigned an IP address by
another method.

• Use APs in repeater mode.
• Use a secondary AP in AP mode with nonoverlapping channels.
• Change the transmitter power level parameter of the existent AP in order to extend
  the coverage.
• Position the APs optimally.

Use the show controllers dot11Radio0 command in order to show the frequency and channel that the AP or bridge is on. This example output shows where to find the information:

• ap #show controllers dot11Radio0 !
• interface Dot11Radio0
  
• Radio AIR−AP1242GA, Base Address 0014.1b58.08f
  
• Version 5.80.12
  
• Serial number: GAM09200992
  
• Number of supported simultaneous BSSID on Dot1
  
• Carrier Set: Americas (US )
  
• DFS Required: No
  Current Frequency: 2412 MHz Channel 1

Refer to Working with Software images for instructions on how to upgrade the Cisco IOS
on the AP.

Note: Use the force−reload option with the archive download−sw command.

Note: When you upgrade the AP or bridge system software by entering the archive
download−sw command on the CLI, you must use the force−reload option. If the AP or bridge does not reload the flash memory after the upgrade, the pages in the web−browser interface might not reflect the upgrade. This example shows how to upgrade system software by using the archive download−sw command:

AP# archive download−sw /force−reload / overwrite tftp://10.0.0.1/image−name