Go Premium for a chance to win a PS4. Enter to Win

  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 232
  • Last Modified:

Can I upload a Cisco IOS image with older IOS version?

Can I upload an image with an older IOS version into a router (assuming the IOS version already in the router is much newer than the IOS version in the image to be uploaded)?

Image source: Cisco 851

Image destination: Cisco 881w
4 Solutions
Patrick BogersDatacenter platform engineer LindowsCommented:

I dont believe you can do this. There are probably way to many other naming conventions in place.
If seriously considering, take a copy of the running config from the 881w and compare to the older one, pretty sure you will see BIG differences.
Jody LemoineNetwork ArchitectCommented:
The 851 and the 881W share the same interface configuration, so as long as your versions aren't too far apart, you should be good.

Post the first line of a "show version" command on each unit and I can let you know if you're safe.
Are we talking about moving the IOS software image, or the configuration?
Jody LemoineNetwork ArchitectCommented:
To clarify, you should be able to move the configuration without too much difficulty, but the software images themselves won't be compatible.
bobox00Author Commented:
Thanks for your comments. Will copy and paste the router config after editing in Notepad.

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Tackle projects and never again get stuck behind a technical roadblock.
Join Now