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TFTP timeout between Subnets

AndyMe123
Level 1
Level 1

Hello,

We have a Cisco 7200 router running v11.0x.

When we attempt to download a bootstrap file from a TFTP server, which is located on a different subnet than the machine attempting to download the bootstrap file, we receive a TFTP timeout error.

However, when we download the bootstrap file from the TFTP server located on the same subnet as the machine, it works correctly.

Is there a particular IOS command required to allow the download to complete?

Thanks,

AM

4 Replies 4

vmiller
Level 7
Level 7

Do you have an IP helper address coded on the outbound interface pointing to the IP address of the TFTP server?

Start with that,

Vincent,

Thanks for the response.

Yes, I had added the IP helper address for the outbound interface pointing to the TFTP server, which is why I was not sure of the reason for the timeout.

I am going to capture the traffic on both subnets to see what is occurring.

Thanks for the suggestion.

Harold Ritter
Level 12
Level 12

Make sure you have a default gateway configured or a "ip default-gateway x.x.x.x" command if you tftp from boot-loader mode.

Hope this helps,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Thanks for the suggestion Harold.

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