Please notice, booting a Cisco router from TFTP not used only for this situation, can also be used for other stuffs such as the router’s RAM inadequate, security solution, flexibility to use different IOS. Command 6: Direct the router to load the IOS on memory rather than downloading it to the flash.Command 5: Name of IOS to be used for bootup (including the.Command 3: Default gateway for router (can be same as TFTP Server IP).
Receiving C3640-Ix-Mz_20122-15_20T2.bin from 172.16.1.100 1) From the serial console session, start the TFTP client running on the cisco router with the copy tftp flash command.
To bypass this problem is just by let the router boot-up with the IOS from an TFTP itself.įirst, make sure that the router is connected to a TFTP Server, also a valid ISO file is there.ĭuring boot-up, press Ctrl+Break continuously so that the router goes into ROMMON mode. However, it is highly recommended to plan & to prepare how to do a rollback in the worst case scenario, for example: if the router fails to boot properly due to corrupted image file or due to usage of new flash memory, etc. It is recommended to maintain your network devices with updated IOS.
