10-01-2014 07:54 AM - edited 07-05-2021 01:38 AM
Hi everyone! Here is my topology and I need to perform image recovery for my 3602.
3602 can be connected and powered only by 2504 controller.
How I need to configure controller to allow communication from 3602 and TFTP server???
Does all ports on controller L3 and I need to make Routing thru 2921 Router?
Or no needs to configure IP ports interfaces on controller and it will work on L2.
Please give me direction to follow and recover IMAGE.
Solved! Go to Solution.
10-03-2014 02:30 AM
You can give a try & see if this works.
1. Make a copy of your "ap3g2-rcvk9w8-tar.152-4.ja1.tar" file & rename it as "ap3g2-k9w7.tar.default" on your TFTP server.
2. Assign your TFTP server 10.0.0.2/8 with gateway as 10.0.0.1
3. Hold the AP mode button while powering from the WLC POE port (for `20s & LED turn to solid RED) & then release the mode button.
4. Watch the AP console to see whether it find your TFTP server & download the recovery image.
Process is explained here for a normal case where you can power the AP from an external adapter.
http://mrncciew.com/2013/12/13/ap-conversion-using-mode-button/
If two ports of controller acting as dummy switchport, that should work.
HTH
Rasika
**** pls rate all useful responses ****
10-03-2014 02:36 AM - edited 12-08-2017 04:40 PM
If you've read the document Using a TFTP Server to Return to a Previous Release, you don't need to touch the controller.
10-01-2014 02:34 PM
What you are trying to do doesn't make any sense.
You're trying to download an image on ROMmon. This can't be done remotely. This can only be done when you've got console access to the AP. And it doesn't make sense either to pull the image from a WAN link.
If what you are trying to do is pull an RCV image into an AP, boot the AP normally, give the AP an IP address and extract the image normally. No need to re-inventing the wheel.
10-01-2014 10:10 PM
Hi Leo! Thank you for answering!
How should topology looks if only one way over PoE to connect and to power AP???
Which IP i should assign to TFTP server, controller and AP (same subnet)?
10-02-2014 05:28 AM
Ok, step back. FAR, FAR back.
I am going to disregard your network diagram: It doesn't make sense.
What exactly are you trying to do?
Can the AP boot normally (and not go into ROMmon)?
10-02-2014 01:19 PM
Alright! I nead to load image to my AP
There are no image on AP and no power supply. That's why i need to perform that task!
Every time it's boots directly to ROMmon.
ap>
ap>
ap>
Does it possible theoretically to configure all controller's ports to Layer 2, and there will be no problems to point AP's interface to TFTP and TFTP interface to AP.
Thanks for helping me to resolve this situation.
10-02-2014 03:20 PM
Ok, now I understand your intention. Your method to accomplish this is not a "smart" way.
The fastest way is to use the Mode button. This means that you load an autonomous IOS (any version as long as it's autonomous). Once the AP boots into autonomous, copy the RCV file into the AP. It's that simple.
To load the autonomous IOS using the Mode button, read this: Using a TFTP Server to Return to a Previous Release
10-02-2014 04:28 PM
Yeah I know not best way but so far so good!
So I'll try your method. Thanks a lot! How controller's interfaces should be configured or I can make factory reset on it?
10-02-2014 05:40 PM
How controller's interfaces should be configured or I can make factory reset on it?
I don't understand your question.
10-03-2014 01:50 AM
Do I need to configure controller for that task??
10-03-2014 02:30 AM
You can give a try & see if this works.
1. Make a copy of your "ap3g2-rcvk9w8-tar.152-4.ja1.tar" file & rename it as "ap3g2-k9w7.tar.default" on your TFTP server.
2. Assign your TFTP server 10.0.0.2/8 with gateway as 10.0.0.1
3. Hold the AP mode button while powering from the WLC POE port (for `20s & LED turn to solid RED) & then release the mode button.
4. Watch the AP console to see whether it find your TFTP server & download the recovery image.
Process is explained here for a normal case where you can power the AP from an external adapter.
http://mrncciew.com/2013/12/13/ap-conversion-using-mode-button/
If two ports of controller acting as dummy switchport, that should work.
HTH
Rasika
**** pls rate all useful responses ****
10-03-2014 07:25 AM
Alright. Thanks for link. Just got power supply. On the pics above topology how it's connected and what result i still getting!
See bellow how it's done and why i still failed to boot.
10-03-2014 03:10 PM
File is "corrupt" or "incomplete" is the most probable explanation.
Before uploading the file from your TFTP server to your AP, make sure you check the MD5 hash value of the file against the MD5 hash value found in the Cisco website.
10-03-2014 02:36 AM - edited 12-08-2017 04:40 PM
If you've read the document Using a TFTP Server to Return to a Previous Release, you don't need to touch the controller.
10-03-2014 07:31 AM
Alright! Image finally loaded!
I think it was very helpfull: Step 3 Set the timeout value on the TFTP server to 30 seconds
But image failed to boot.
But image failed to boot.
10-03-2014 07:32 AM
How to resolve that problem??
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