Cisco Cisco IOS Software Release 12.3(4)T

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The RFC-2867 RADIUS Tunnel Accounting introduces six new RADIUS accounting types that are used 
with the RADIUS accounting attribute Acct-Status-Type (attribute 40), which indicates whether an 
accounting request marks the beginning of user service (start) or the end (stop). 

This feature also introduces two new virtual private virtual private dialup network (VPDN) commands 
that help users better troubleshoot VPDN session events.

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image 
support. Access Cisco Feature Navigator at 

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Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at 
the login dialog box and follow the instructions that appear. 

12.2(15)B

This feature was introduced on the Cisco 6400 series, Cisco 7200 series, 
and the Cisco 7400 series routers.

12.3(4)T

This feature was integrated into Cisco IOS Release 12.3(4)T.