Well, its said that Tftp should be used it the router does not have an Upgrade firmware option. If it has, then the option has to be used from the WebUI.
Anyways, I tried Tftp from my Mac also. (Default Router IP: 192.168.2.1)
Terminal Command:: echo "put dd-wrt.v23_generic.bin" | tftp -e 192.168.2.1
Result: Tftp> Transfer timed out. |