Cisco Cisco IOS Software Release 12.4(2)XB6

© 2007 Cisco Systems, Inc. All rights reserved.

These release notes describe new features and significant software components for the Cisco 3700 series 
routers that support the Cisco IOS Release 12.4(6)XE releases. These release notes are updated as 
needed to describe new memory requirements, new features, new hardware support, software platform 
deferrals, microcode or modem code changes, related document changes, and any other important 
changes. Use these release notes with the 

located on 

 in PDF or HTML format.

For a list of the software caveats that apply to Cisco IOS Release12.4(6)XE releases, see the 

, and see the online 

document. The caveats 

document is updated for every

12.4T 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 

.