topic Re: TFTP Help in Wireless

TFTP Help

momalley1 — Sun, 04 Jul 2021 17:42:31 GMT

I am trying to put an image back onto an Access point.

I have followed the guide which is on this site and it is not working for me.

Here are the stages i have done so far.

Set up TFTp server and set my IP to 10.0.0.5.

Reset access point, while connected to hyperterminal, and can see that its looking for the file which is on the computer which im connected to.

This is what comes up on hyperterminal:

ap: Xmodem file system is available.1200-k9w7

flashfs[0]: 2 files, 1 directories

-tar.default

flashfs[0]: 0 orphaned files, 0 orphaned directoriestp://255.255.255.255/c1200-k9w7-tar.de

flashfs[0]: Total bytes: 7741440

Initializing ethernet port 0...

Reset ethernet port 0...

Reset done!

ethernet link up, 100 mbs, full-duplex

Ethernet port 0 initialized: link is up

button is pressed, wait for button to be released...

button pressed for 24 seconds

process_config_recovery: set IP address and config to default 10.0.0.1

process_config_recovery: image recovery

image_recovery: Download default IOS tar image tftp://255.255.255.255/c1200-k9w7

-tar.default

examining image...Tar checksum error in tftp://255.255.255.255/c1200-k9w7-tar.de

fault

ERROR: Failed to open archive file tftp://255.255.255.255/c1200-k9w7-tar.default

download takes about 0 seconds

The system is unable to boot automatically because there

are no bootable files to boot.

ap:

While this is happeneing the tftpd32.exe is saying this:

ap: Xmodem file system is available.1200-k9w7

flashfs[0]: 2 files, 1 directories

-tar.default

flashfs[0]: 0 orphaned files, 0 orphaned directoriestp://255.255.255.255/c1200-k9w7-tar.de

flashfs[0]: Total bytes: 7741440

Initializing ethernet port 0...

Reset ethernet port 0...

Reset done!

ethernet link up, 100 mbs, full-duplex

Ethernet port 0 initialized: link is up

button is pressed, wait for button to be released...

button pressed for 24 seconds

process_config_recovery: set IP address and config to default 10.0.0.1

process_config_recovery: image recovery

image_recovery: Download default IOS tar image tftp://255.255.255.255/c1200-k9w7

-tar.default

examining image...Tar checksum error in tftp://255.255.255.255/c1200-k9w7-tar.de

fault

ERROR: Failed to open archive file tftp://255.255.255.255/c1200-k9w7-tar.default

download takes about 0 seconds

The system is unable to boot automatically because there

are no bootable files to boot.

ap:

Connection received from 10.0.0.1 on port 1024 [25/04 14:06:35.647]

Read request for file <c1200-k9w7-tar.default>. Mode octet [25/04 14:06:35.737]

TIMEOUT waiting for Ack block #1 [25/04 14:06:50.789]

Im may be wrong but could it be something to be with the tftp://255.255.255.254, as my server is running on 10.0.0.5.

Is there anyway in which i can change this, or allow the file transfer to happen.

Thanks

Re: TFTP Help

momalley1 — Mon, 25 Apr 2005 12:11:11 GMT

Sorry,

The tftp server was just saying this:

Connection received from 10.0.0.1 on port 1024 [25/04 14:06:35.647]

Read request for file . Mode octet [25/04 14:06:35.737]

TIMEOUT waiting for Ack block #1 [25/04 14:06:50.789]

Thanks

Re: TFTP Help

petermanmj25 — Wed, 05 Apr 2006 04:27:51 GMT

Ya, i am getting the same issue, with my Cisco Aironet 1100 AP, Do you know if you ever got your issure resolved or did you just call the Tech Line.. If you could let me know i would greatly apprecieate that

Re: TFTP Help

momalley1 — Wed, 05 Apr 2006 22:24:33 GMT

Hi,

One thing which really helped me was this guide:

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=General&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40%40.1dda31cb/0#selected_message

Im not sure if that link will work, but if theres any problems you can email me on

Michael.O'Malley@yorkshire-Forward.com

Hope that helps

Michael

Re: TFTP Help

petermanmj25 — Tue, 02 May 2006 05:46:31 GMT

i have FOUND THE FIX SET IP TO 10.0.0.1, 255.0.0.0 AND DEFAULT GATEWAY TO 10.0.0.0

Re: TFTP Help

planzone — Tue, 02 May 2006 15:55:38 GMT

May I ask what procedure you are using to upgrade your IOS? You have a link?

Re: TFTP Help

psion — Wed, 03 May 2006 14:27:42 GMT

I have found TFTP to be somewhat flaky. It does not seem to like upgrading via the command line but if I upgrade using TFTP via the browser then I am fine.

I use the Solarwinds TFTP client.

Re: TFTP Help

frekes — Thu, 04 May 2006 09:11:10 GMT

I have followed all these steps and still have a problem with the AP reporting "Permission Denied".

Anyone resolved this.

Re: TFTP Help

planzone — Fri, 05 May 2006 18:50:03 GMT

I use the same tftp client.

Only issues I have is sometime i forget to turn of any firewall or checkpoint software that is bound to that nic card on my laptop that I am using for the upgrade.

Re: TFTP Help

frekes — Mon, 08 May 2006 16:42:22 GMT

The procedure I use is to tar from a tftp server after having set the ip address etc, which always seems to fail. No firewall sw running on the pc either.

The procedure is as described in the 1200 recovery procedure document, which actually uses screen dumps from a 350 so I do wonder.

Incidently I did try renaming the image I had to be the same as the default requested image as per the documentation and hitting the mode button, but that didn't work either. Got some message about priveledges or something. At which point both the AP and laptop came very close to going out the window.

This isn't rocket science and I wonder how quite a few people could be having the same issues.

Re: TFTP Help

ulstegner — Wed, 17 May 2006 19:05:06 GMT

Hello,

I had in the past often recovered the AP image.

Sometimes it was necessary :

ap:flash_init

ap:reset

Importend IP address client: between 10.0.0.2 ..30/8

File : c1200-k9w7-tar.default(renamed original file)

I use 3Com TFTP server

regards Ulrich

Re: TFTP Help

psion — Thu, 18 May 2006 14:40:46 GMT

You might find this document handy.

Re: TFTP Help

frekes — Fri, 19 May 2006 09:53:51 GMT

ap: set

DEFAULT_ROUTER=10.0.0.1

IP_ADDR=10.0.0.3

NETMASK=255.0.0.0

ap: tftp_init

ap: tar -xtract tftp://10.0.0.2/c1200-k9w7-tar.default flash:

tftp://10.0.0.2/c1200-k9w7-tar.default: permission denied

This is after renaming the file to be the same as the default requested file.

Re: TFTP Help

psion — Fri, 19 May 2006 13:57:32 GMT

Is your tftp server's permissions set correctly?

I got the same issue on TFTP

Matheus Lopes — Fri, 23 May 2014 18:37:20 GMT

I got the same issue on TFTP "TIMEOUT waiting for Ack block #1".

The problem was that when we download the IOS Autonomous from the Cisco website, it´s a ZIP file, so we MUST copy this original file ZIP on the TFTP folder, instead of open the ZIP file and copy the archive to the TFTP Folder. My firewall is disable as well.

The problem was that when we

Leo Laohoo — Sat, 24 May 2014 02:20:32 GMT

The problem was that when we download the IOS Autonomous from the Cisco website, it´s a ZIP file,

A ZIP file????

Sorry, my bad!!! The format

Matheus Lopes — Mon, 26 May 2014 15:03:00 GMT

Sorry, my bad!!! The format of the file that i downloaded from Cisco website is .tar. I have WinZip on my PC and i was opening the archive with it and extracting the file .tar, so it was not working and i got the error "TIMEOUT waiting for Ack block #1"on TFTP.

We must use exactly the file .tar downloaded and rename it to .default.

If you're getting "timeout",

Leo Laohoo — Mon, 26 May 2014 22:47:22 GMT

If you're getting "timeout", this means the TFTP can't reach the AP.

I had the same issue too;

binoj — Tue, 24 May 2016 10:44:18 GMT

I had the same issue too;

changed the laptop where TFTP server was installed.
Copied all the files to the destination in new latop
Connected AP Console and LAN to new laptop
Rebooted AP
Voila, new image was transferred via TFTp

Re: TFTP Help

ZacGomez — Tue, 18 Sep 2018 01:10:02 GMT

TIMEOUT waiting for Ack block #1 I got the same banner and I solved it with the command 'IP TFTP Source-Interface'

Is a connectivity problem not from the configuration of the tftp server.

First. this banner show that the tftp session cannot start up correctly.
TFTP overall work like this It send a message to start the communication and need an ack to realize that the session is up (ack #1). In my case I had a lot of sub interfaces in the router but for a reason that I don’t know why the message never arrived to the tftp server, I would like to suppose the request of acknowledgment message took one incorrect sub interface and for this reason the packet lost. I checked with other device (Switch) that connected correctly with the tftp and checked which network ID I use and use the command "IP TFTP Source-Interface" in the router with the same sub interface which was in the switch network ID and it worked.

So, I think you have to ask you why the Ack message lost or don’t arrive to the tftp server?