Cisco Cisco IOS Software Release 12.4(23) Release Notes

© 2005–2010 Cisco Systems, Inc. All rights reserved.

See the 

 for important information about Cisco IOS Release 12.4.

These release notes support Cisco IOS Release 12.4. They are updated to describe new memory 
requirements, hardware support, software platform deferrals, and related documents. 

For a list of the software caveats that apply to Cisco IOS Release 12.4, see the 

 document, which accompanies these release notes. The caveats document is updated for 

every maintenance release and is located on

We recommend that you view the field notices for this release to see if your software or hardware 
platforms are affected. If you have an account on Cisco.com, you can find field notices at 

. If you do not have a Cisco.com login 

account, you can find field notices at 

 These release notes contain the following sections: