What is Access Point?

  • Access point (AP) is a device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards.

  • Here,Upgrade the IOS Image in the AP model - AIR-AP1142N-A-K9 

Architecture for AP in a Site:

ap diagram.png


  • Install the hyperterminal Software in the machine from which we are connecting the AP.
  • Install the TFTP software
  • Latest firmware of Access Point should be in the TFTP folder
  • Console Cable
  • Connect the PC/Laptop to the site in which the Access Point is present via Wi-Fi
  • Take the backup of Old AP image (Future Reference)


Step 1: Using the Console Cable, connect your Laptop to console port of the Access Point.

Step 2: Run the tftp.exe file in the TFTP Folder to get the TFTP IP Address.


Step 3: Open the hyperterminal, give any name, click the icon and then press ok.


Step 4: Select the COM Port and then press ok. 


Step 5: Set the Restore default, after that press ok.


Step 6: Go to Privilege mode. Type the command as follows

Step 7: Type the command show flash to view the old and new firmware name.

  • sh flash

Step 8:  Delete the old firmware file by

  • delete /recursive flash:old firmware name
  • Eg: delete /recursive flash:c1140-k9w7-mx.124-21a.JA1

Step 9:  Now again type the show flash command to check whether the

old firmware file is deleted.

  • sh flash

Step 10: Reload the Access Point by giving the command

  • Reload