You want to install the Blue Coat Authentication and Authorization Agent (BCAAA) for use with the PacketShaper.
For a detailed procedure on installing BCAAA for PacketShaper, refer to the PacketGuide links below:
PacketShaper (Legacy Supported Models: 900, 1700, 3500, 7500, 10000, 120000):
PacketShaper S-Series (Supported Models: S200, S400, S500):