Cisco Cisco IOS Software Release 12.4(22)XR

Resource Revocation for Mobile IP

Packet of Disconnect

IS-835 Prepaid Support

Prepaid Billing

Mobile IP Call Processing per Second Improvements

Always-On Feature

PDSN MIB Enhancements

Conditional Debugging Enhancements

Cisco Proprietary Prepaid Billing

3DES Encryption

Mobile IP IPSec

Hardware IPSec Acceleration Using IPSec Acceleration Module—Static IPSec

1xEV-DO Support

Integrated Foreign Agent

AAA Server Support

Packet Transport for VPDN

Proxy Mobile IP

Multiple Mobile IP Flows

PDSN Cluster Controller / Member Architecture

Refer to the Cisco Packet Data Serving Node Release 5.1 for Cisco IOS Release 12.4(22)XR1 at 

more information on the features.

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most 
serious caveats; severity 2 caveats are less serious. 

Caveats for Cisco IOS Releases 12.3 are available on Cisco.com at 

The “

” section lists open caveats that apply to the current release; they may also apply to 

previous releases.

The “

” section lists caveats resolved in a particular release that may have been open in 

previous releases.

” section describes the product documentation that is available.

If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for 
any release. You can access Bug Navigator II on Cisco.com at Software Center: Cisco IOS Software: 
Cisco Bug Toolkit: Cisco Bugtool Navigator II, or at