topic Re: I had a same scenario just an in Switching

Error opening tftp (Timed out)

Yadhu Tony — Thu, 07 Mar 2019 21:42:44 GMT

Hello,

I installed a new router and trying to backup the initial configuration to our tftp server. But getting the error " %Error opening tftp://172.17.0.39/corporate-confg (Timed out)"

I can ping the tftp server from router. There is no firewall in between router and tftp server. Other network devices in the same subnet can upload / download from tftp server. Only this router can't use the tftp. I tried to install a seperate tftp server and tried but no hope with the freshly installed router. Router running config is attached. Please help me.

Regards,
Tony

Error opening tftp (Timed out)

johnlloyd_13 — Tue, 04 Jun 2013 11:27:19 GMT

hi,

kindly double check your file extension.

tftp://172.17.0.39/corporate-config.txt

Re: Error opening tftp (Timed out)

InayathUlla Sharieff — Tue, 04 Jun 2013 11:40:00 GMT

Hi Yadav,

Try the following:

1- Make sure the TFTP is pinging

2- Try using TFTPD32 software for TFTP

3- Check if there is any firewall issue or tftp application on the computer

4- Make sure your TFTP server is turned on.

5- Check the file extension, If possbile copy the exact file extension from TFTP server file and paste on the router.

HTH

Regards

Inayath

Error opening tftp (Timed out)

Yadhu Tony — Tue, 04 Jun 2013 13:05:24 GMT

Hi,

I checked it. Its not working either.

Regards,
Tony

Error opening tftp (Timed out)

Yadhu Tony — Tue, 04 Jun 2013 13:10:00 GMT

Hi Inayath

1. TFTP is pinging.

2. I am using TFTPD32

3. I disabled the windows firewall.

4. Even the file extension is also correct.

Its really strange that only this router is facing the problem. TFTP server is working well with other routers and switches.

Regards,
Tony

Error opening tftp (Timed out)

InayathUlla Sharieff — Tue, 04 Jun 2013 14:49:34 GMT

YAdhu,

Eliminate the TFTP server for now.

Configure your Laptop to act as TFTP server.

Connect laptop to the Switch and try pulling the config and update us the result.

Regards

Inayath

Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 07:08:40 GMT

Hi Inayath,

Still no hope. Router is showing the same error. I tried tftpd32 and even another tftp (winagents) server which is installed on my computer and directly connected to router. Please see the attached screenshot. Don't know what is happening. The interesting part is all other devices can access this tftp without any issue.

Regards,
Tony

Error opening tftp (Timed out)

Leo Laohoo — Wed, 05 Jun 2013 07:11:50 GMT

You can ping the TFTP server but you can't transfer? Nah, there's a firewall blocking.

If it's not a firewall, then there's an application stopping.

Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 07:20:56 GMT

Hi Leo,

Thank you for the reply.

Yes, I can ping but can't transfer. I disabled the firewall even. This happens only with a newly installed router. Other devices are using this tftp server without any issue. Could you please check the running-config which I attached with my original question and check if anything is wrong.

Regards,
Tony

Error opening tftp (Timed out)

johnlloyd_13 — Wed, 05 Jun 2013 07:42:57 GMT

hi tony,

could you post 'show flash'?

try using .cfg instead:

#copy run tftp://172.17.0.83/runningconfig.cfg

alternatively, just hit enter key to use corporate-config.

Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 07:53:46 GMT

Hi,

CORPORATE#sh flash:

-#- --length-- -----date/time------ path

1 55440640 Apr 2 2012 18:28:06 +00:00 c1900-universalk9-mz.SPA.151-4.M3.bin

201142272 bytes available (55443456 bytes used)

Also see the error:

CORPORATE#copy run tftp://172.17.0.83/runningconfig.cfg

Address or name of remote host [172.17.0.84]?

Destination filename [runningconfig.cfg]?

.....

%Error opening tftp://172.17.0.83/runningconfig.cfg (Timed out)

CORPORATE#ping 172.17.0.83 repeat 100

Type escape sequence to abort.

Sending 100, 100-byte ICMP Echos to 172.17.0.83, timeout is 2 seconds:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Success rate is 100 percent (100/100), round-trip min/avg/max = 1/1/4 ms

Not working either

Regards,
Tony

Error opening tftp (Timed out)

Leo Laohoo — Wed, 05 Jun 2013 08:00:04 GMT

%Error opening tftp://172.17.0.83/runningconfig.cfg (Timed out)

When you do TFTP and you get the "timed out" message, it always means that something is blocking.

Can you draw a network diagram about this setup?

How about hooking the router DIRECTLY to the PC/laptop/client?

Error opening tftp (Timed out)

johnlloyd_13 — Wed, 05 Jun 2013 08:01:40 GMT

config looks fine. leo might be right. could be your PC or maybe an AV.

have you tried another PC with different OS?

Error opening tftp (Timed out)

Leo Laohoo — Wed, 05 Jun 2013 08:06:14 GMT

 maybe an AV.

I agree with John. Maybe a mis-configured anti-virus could be the culprit.

Re: Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 09:05:08 GMT

Hi Leo,

No hope. Its really frustrating. This is what I tried:

1. Changed different PC

2. Connected directly to the PC.

3. Tried variuos tftp servers.

4. Disabled AV and firewall.

5. Connected to a different switch.

6. Used all the file extension that you have mentioned earlier.

This is the log that I am getting from one of the tftp server.

Also please see the network setup. Router ge0/0 is connected with switch and from the same switch I connected my laptop. Even I tried a direct connection between laptop & router but the same result.

Edit: Also I can see that in tftp server a 0kb file of running-config got created with an extension .p1 when I tried to copy running-config to tftp.

Regards,
Tony

Error opening tftp (Timed out)

Leo Laohoo — Wed, 05 Jun 2013 09:32:28 GMT

Hmmmmm ... I got an idea.

You got a switch between the client and the router?

Try copying the file from the router and into the switch.

Re: Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 10:13:15 GMT

Hi Leo,

Its not a Cisco switch, so I can't do that.

How do I copy this to a USB flash drive ? I tried to connect one USB flash drive but don't know how to work with that. Can you please help me.

Regards,
Tony

Error opening tftp (Timed out)

InayathUlla Sharieff — Wed, 05 Jun 2013 10:37:43 GMT

Hi,

I believe the TFTP server is able to reach the router.

At this point you are left with the following options:

-Take a packet capture on your pc

-run a netstat -an on the pc

-Then run the command on the router, let it timeout and look at the packet capture.

I suspect you will not see anything regarding TFTP port and hence this will mean that either you have a FW on the PC either somewhere along the path between your switch and your PC.

If you see TFTP communications, post the packet capture, if you don't fix your FW issues.

Regards

Inayath

Error opening tftp (Timed out)

InayathUlla Sharieff — Wed, 05 Jun 2013 10:38:52 GMT

BTW,

R u able to push any config from your router to TFTP server?

Re: Error opening tftp (Timed out)

Yadhu Tony — Wed, 05 Jun 2013 11:27:09 GMT

Hi Inayath,

Thank you for the reply.

Yes, TFTP server is able to reach the router.

This is what I did before capturing the packets:

CORPORATE#copy running-config tftp:

Address or name of remote host []? 172.17.0.84

Destination filename [corporate-confg]? RunningConfig.txt

.....

%Error opening tftp://172.17.0.84/RunningConfig.txt (Timed out)

Please see the packet captured during TFTP transfer.

Frame 88: 68 bytes on wire (544 bits), 68 bytes captured (544 bits)

Ethernet II, Src: Cisco_4e:16:e0 (50:57:a8:4e:16:e0), Dst: Pegatron_1e:e0:bc (70:71:bc:1e:e0:bc)

Internet Protocol Version 4, Src: 172.17.0.5 (172.17.0.5), Dst: 172.17.0.84 (172.17.0.84)

User Datagram Protocol, Src Port: 55701 (55701), Dst Port: tftp (69)

Trivial File Transfer Protocol

No. Time Source Destination Protocol Length Info

89 7.028513 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 126: 82 bytes on wire (656 bits), 82 bytes captured (656 bits)

Ethernet II, Src: Smartlin_05:37:c3 (00:17:7c:05:37:c3), Dst: Pegatron_1e:e0:bc (70:71:bc:1e:e0:bc)

Internet Protocol Version 4, Src: 172.17.0.6 (172.17.0.6), Dst: 172.17.0.84 (172.17.0.84)

Internet Control Message Protocol

No. Time Source Destination Protocol Length Info

127 11.971420 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 131: 106 bytes on wire (848 bits), 106 bytes captured (848 bits)

Ethernet II, Src: Cisco_4e:16:e0 (50:57:a8:4e:16:e0), Dst: Pegatron_1e:e0:bc (70:71:bc:1e:e0:bc)

Internet Protocol Version 4, Src: 172.17.0.5 (172.17.0.5), Dst: 172.17.0.84 (172.17.0.84)

Transmission Control Protocol, Src Port: ssh (22), Dst Port: 12098 (12098), Seq: 105, Ack: 1, Len: 52

SSH Protocol

No. Time Source Destination Protocol Length Info

132 13.028167 172.17.0.5 172.17.0.84 TFTP 68 Write Request, File: RunningConfig.txt, Transfer type: octet

Frame 132: 68 bytes on wire (544 bits), 68 bytes captured (544 bits)

Ethernet II, Src: Cisco_4e:16:e0 (50:57:a8:4e:16:e0), Dst: Pegatron_1e:e0:bc (70:71:bc:1e:e0:bc)

Internet Protocol Version 4, Src: 172.17.0.5 (172.17.0.5), Dst: 172.17.0.84 (172.17.0.84)

User Datagram Protocol, Src Port: 55701 (55701), Dst Port: tftp (69)

Trivial File Transfer Protocol

No. Time Source Destination Protocol Length Info

133 13.028426 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 184: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)

IEEE 802.3 Ethernet

Logical-Link Control

Internetwork Packet eXchange

IPX Routing Information Protocol

No. Time Source Destination Protocol Length Info

185 17.973359 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 236: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)

Ethernet II, Src: Cisco_af:3d:ae (64:9e:f3:af:3d:ae), Dst: Broadcast (ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info

237 23.073258 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 277: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)

Ethernet II, Src: Micro-St_9f:b1:ba (00:24:21:9f:b1:ba), Dst: Broadcast (ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info

278 28.173310 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 309: 70 bytes on wire (560 bits), 70 bytes captured (560 bits)

Ethernet II, Src: HewlettP_f1:6d:db (b4:b5:2f:f1:6d:db), Dst: Pegatron_1e:e0:bc (70:71:bc:1e:e0:bc)

Internet Protocol Version 4, Src: 172.17.0.28 (172.17.0.28), Dst: 172.17.0.84 (172.17.0.84)

Internet Control Message Protocol

No. Time Source Destination Protocol Length Info

310 33.173138 172.17.0.84 172.17.0.5 TFTP 46 Acknowledgement, Block: 0

Frame 363: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)

Ethernet II, Src: Ibm_c1:82:9c (e4:1f:13:c1:82:9c), Dst: Broadcast (ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request)

No. Time Source Destination Protocol Length Info

364 38.273610 172.17.0.84 172.17.0.5 TFTP 63 Error Code, Code: Unknown (9), Message: Timeout occured.

No, I am not able to push any config from router to TFTP server.

Regards,
Tony