I have to deploy several hundred phones quickly to a site that will have a small link back to our TFTP running on our pub. I am trying to upgrade the phones to the current version of firmware we are running on out cluster. I have configured a switch (running DHCP with option 150 that is not connected to my network) and a TFTP server and would like to have the phones pull the firmware from the TFTP server that I created. I have downloaded the firmware files from Cisco.
When I plug in a phone it will get an IP address from the DHCP server and find the TFTP but will not pull the files. When I look at my TFTP server it says the phone is looking for the file <XMLDefault.cnf.xml>
How can I make this work?