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Knowledge Base Detailed Resolution


Category:

TFTP Server


Question:

Advanced help on transferring files.


Resolution:

If you are unable to transfer a file, check the following :

Is the TFTP Server running?

Is the TFTP Server configured for "Receive"?
Select "Configure" from the TFTP Server's "File" menu. Then make sure "Security" and "Advanced Security" are not blocking requests from that router.

Is there an access list on the router that is blocking SNMP requests or TFTP file transfers ?
In a Cisco config, the SNMP command would look similar to this :
snmp-server community public RO 60
The "60" at the end of this line is referring to an access list.

You will want to add your PC's IP address to the access list. (or add your entire range of internal IP addresses, or remove the access list entirely)

Is there a firewall blocking TFTP file transfers ?

This is a very common problem. Since the file transfer is initiated by the router, the Firewall must allow TFTP requests through port 69.

Are your file transfer requests specifying a pathname?
We recommend ensuring that a pathname is not specified when transferring files using the TFTP Server via command line. The TFTP Server requires the Root Directory to be pointed to the source/destination location. The command should only contain the filename.