How to Upgrade Cisco Flash Firmware Version

  I recently had to upgrade a Cisco router to a new firmware version, so I thought I’d write up a quick how-to guide. Prerequisites: Download the new flash version from Cisco (you need a valid Cisco login) TFTP the firmware to the Cisco device Connect to the Cisco device using a console cable (highly… Read more »

Cisco File Copy from Flash to TFTP

Assumptions: A working TFTP server No restrictions for UDP packets to be sent from Cisco device to TFTP server (port 69) Procedure: TFTP Server 1. Create a file on the TFTP server touch <filename> 2. Change the permissions chmod 777 <filename> Cisco Device 3. Copy the file from the Cisco device copy flash:<filename> tftp enter… Read more »