Hi,

2600 IOS was not being use for 2800. (2811)It has been upgraded to 12.4(13r)T.

Secondly, Should I assume that ip subnet-zero,ip classless are default enable as well?

Also, is there some kind of white paper that indicates all the default enable/disable commands for a certain version/model?

Thanks,

There is no such document. You have to check the release notes for changes from one release to another. Here is a collection :-)

http://www.cisco.com/pcgi-bin/search/search.pl?searchPhrase=ios+release+notes&nv=Search+All+cisco.com%23%23cisco.com&language=en&country=US&accessLevel=Guest&x=9&y=10

Those commands are no longer nvgen'd into the configuration. I know because I filed the bug to do it :) Here is the bug id:

CSCsa75635

Internally found moderate defect: Resolved (R)

ip classless and ip subnet-zero should not be nvgen in 12.4

This was resolved as of 12.4(5) and later. They were long time defaults and as such should not be nvgen'd into the config.

Hi,

This made sense now so If i have another router (3640) that need IOS upgrade to 12.4(13r)T all the ip classless and ip subnet-zero that are visible in "sh run" should disappear after successfully upgraded and reboot. Right?

Thanks a bunch.