![]() Make sure you reassign an IP address to the mangement port (fastethernet 0 in my example). ![]() Saving the config here saves only the config to flash, because guess what, you don’t have an IOS image saved in flash yet. Would you like to enter the initial configuration dialog? : yesĭo what you like here. When I saw this message, I jumped up and down excitedly: Since my switch is stackable (2960S model), it held an election, and finding no other switches in the stack, elected itself as the master. switch: boot t After about 3 minutes, the image was loaded into memory (NVRAM) and gave useful and cryptic messages. tar file, which is larger and includes the “web based device manager” that you don’t need at this point. Now boot the switch from the image stored on your TFTP server (this assumes you’ve downloaded/saved an appropriate version.Confirm the variables were set properly & test network connectivity to the TFTP server with ping: switch: set switch: ping 192.168.100.240 ping 192.168.100.240 with 32 bytes of data … Host 192.168.100.240 is alive.Set some variables, here’s the tl dr on how to set the IP address and default gateway, so that it’s network reachable (replace these values with values appropriate for your network): This configures the management port with this IP address: switch: set IP_ADDR 192.168.100.100/255.255.255.0 This configures the default gateway: switch: set DEFAULT_ROUTER 192.168.100.1.Connect an ethernet cable between the switch management port to a live network: on my Catalyst 2960S, this is fastethernet 0, that port next to the console port.Here is what I did to get a working IOS image onto my switch using TFTP, without taking my ancient XP laptop out of storage and using XModem or HyperTerminal, like the Cisco docs suggest, which are linked at the bottom of this post. Switch: set If you’re stuck at the switch: prompt… List of filesystems currently registered:īs: (read-only) flash: (read-write) xmodem: (read-only) null: (read-write) tftp: (read-only) Switch: version C2960S Boot Loader (C2960S-HBOOT-M) Version 12.2(53r)SE, RELEASE SOFTWARE (fc3) Compiled Wed 03-Mar-10 19:00 by nachen Perhaps you enter random characters at this odd prompt, to find out what your options are, and if any of them look familiar. Would you like to enter the initial configuration dialog? :Īnd you frown, and maybe scratch your head, with a question lingering on your face. Let’s assume you bought a “gently used” Catalyst switch on Ebay, or Craigslist, and when you connected your console cable to your computer, you saw:Īnd you know in a perfect world, you’d see this: When you want to use TFTP to recover from a corrupted Catalyst IOS image. ![]()
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