12-28-2006 05:49 AM - edited 03-05-2019 01:30 PM
Hi,
I have problem to enable CEF on my Cisco 831 router (2Eth+4FastEth ports). As I can conclude, default IOS on it (12.3(2)XE3) supports CEF, but I have problem with enabling. When I type "IP CEF" in config mode, router stop responding for a few seconds, and after that in "sh ip cef" output I get "%CEF not running". I would be grateful for the answer.
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12-28-2006 05:23 PM
You're running a pretty obscure version of IOS. Upgrade to either a 12.3T or 12.4 mainline release and see if you have better luck.
12-28-2006 05:23 PM
You're running a pretty obscure version of IOS. Upgrade to either a 12.3T or 12.4 mainline release and see if you have better luck.
01-08-2007 04:51 AM
I've replaced my IOS with 12.4(8), and now I can enable CEF on my router. Thank You for the answer.
12-28-2006 09:29 PM
Hi
In addition to the other post you can make use of the below link to find out the exact ios code to have the required feature in your router..
http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp
regds
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