Restore ios on cisco 800 series router
Please can anyone help with this problem: I accidentally erase the flash on cisco 871 router, though I have a back for the ios but I have not been able to restore it back because the router has no ip address. Have tried restoring with tftp server but without ip address given to router the tftp server can't reach the router. Please this is urgent because the router is being used in my office and I need to get it up and running ASAP. Possibly within the hour. Thanks in anticipation