I have issued the "eigrp log-neighbor-changes" command for my router eigrp 100 interface and did not encounter any error messages. I save the changes to nvram and execute the "sho run" and I don't see the eigrp entry under "router eigrp 100." I am running IOS version 12.3
How do I check if the eigrp logging is enabled by default?
This happens because it is enabled by default, and default configuration is not displayed in the sh run, try doing "no eigrp log-neighbor-changes" and you'll see that it will appear in the configuration, then re-enable it again.