I've had an ongoing issue that I have been trying to figure out. I want to be able to upload a new IOS to a remote router from a tftp server running on my laptop. The cisco router is running at a remote branch. I have access to the router via a vpn tunnel. There are no acls on the router that would prevent me from preforming this action. As a test I was able to tftp the running config to a tftp server on the local subnet as the router, however, I want to be able to tftp to the router from my tftp server. Is there any issues concerning tftp to remote cisco routers?