Cisco Cisco IOS Software Release 12.4(2)XB6

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Release Notes for Cisco 2691 Routers for 
Cisco IOS Release 12.4(6)XE
August 8, 2007
Cisco IOS Release 12.4(6)XE3
OL-10913-02 Third Release
These release notes describe new features and significant software components for the Cisco 2691 
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 
 and the Documentation CD.
For a list of the software caveats that apply to Release 12.4(6)XE releases, see the 
 and 
The online caveats document is updated for every 
maintenance release and is located on 
and the Documentation CD.
Contents
System Requirements
This section describes the system requirements for Release 12.4(6)XE and includes the following 
sections: