TFTP Procedure
Here is a short description of how to TFTP a firmware image onto a Colubris/HP device.
1. Attach a CROSSOVER LAN cable from a PC to the LAN connector of the AP/AC (or use a HUB with straight-through cables. Do not attach any cable to the Internet port of the AP/AC.
2. Statically assign an IP address to the PC on subnet 192.168.1.x, in the range of .2 - .254
3. Depress the reset button with a tool such as a straightened paper clip and hold it until you notice a slow flashing followed by a fast flashing in unison of all of the LEDs. Once you see the fast flashing you are now in BOOT mode, you can let go of the button.
4. On the PC, open a command window and type the following commands from the directory in which you saved the startup firmware xxx.cim.startup.
- arp -d 192.168.1.1
- ping 192.168.1.1 (this should work. Otherwise, see troubleshooting below).
- tftp -i 192.168.1.1 put xxx.cim.startup image
The transfer should take less than 10 seconds to complete during which time the LAN LED will indicate activity.
You can confirm that the firmware is being flashed on the AP/AC by seeing two distinct sets of flashing LEDs, the second one being much longer duration than the first. Give the AP/AC ample time to reboot (3 minutes to be sure).
5. Perform a factory reset of the AP/AC by depressing the reset button and holding until the slow, in unison flashing of the LEDs occurs, and release the button. Do not wait for the fast flashing as you did in step 3, or this will place you back into Boot mode. If this happens, simply wait 2 minutes and the AP/AC will restart itself. In this case, you’ll need to repeat this step.
6. On the PC, ping the AP/AC using the command: ping 192.168.1.1
The AP/AC should now be in the same state as when it is shipped from our warehouse.
Troubleshooting:
If you cannot ping the AP while it’s in BOOT mode there can be only a few
reasons:
- your cable is faulty or not a CROSSOVER cable
- you are not in BOOT mode
- you don't have a statically assigned address your PC in the correct address range
(use ipconfig /all look at the interface attached to your AP and confirm that you have a valid IP address (192.168.1.x, should be statically configure in the range of .2 - .254))
okumus@ankara.edu.tr
#crossovercable#firmwareupdate