Cisco IOS Release-Specific Security Features

• Cisco IOS Release 11.3 T Security Features
  Releases 11.3(3)T and 11.3(4)T

• Cisco IOS Release 12.0 S Security Features
  Release 12.0(5)S

• Cisco IOS Release 12.0 T Security Features
  Releases 12.0(1)T, 12.0(2)T, 12.0(3)T, 12.0(4)T, 12.0(5)T, and 12.0(7)T

• Cisco IOS Release 12.0 XA Security Features
  Release 12.0(1)XA

• Cisco IOS Release 12.1 T Security Features
  Release 12.1(1)T