SteelHead™ Deployment Guide - Protocols : RiOS Version Compatibility with Domains and Domain Relationships : User Domain Is Different from Server Domain (Bidirectional)—Transparent Mode
  
User Domain Is Different from Server Domain (Bidirectional)—Transparent Mode
Use the following table when the user is in a different domain from the servers in question, there is a bi-directional trust relationship between the domains, and you want to use Transparent mode.
 
Transparent Mode
Different Domain
Bidirectional Trust

Domain(Server)
Windows XP Clients
Windows Vista and Windows 2008 Clients
Windows 7 and Windows 2008-R2 Clients
Windows 2000
RiOS v6.0
RiOS v6.0
RiOS v7.0
Windows 2003
RiOS v6.0
RiOS v6.0
RiOS v7.0
Windows 2008
RiOS v6.0
RiOS v6.0
RiOS v7.0
Windows 2008-R2
RiOS v6.1
RiOS v6.1
RiOS v7.0
In releases prior to RiOS v7.0, Transparent mode is not supported. The SteelHead intercepts this traffic but there is no latency benefit or data reduction. Riverbed recommends that you pass-through these types of connections to reduce overhead on the SteelHead.
To use Transparent mode with the default settings in Windows 7 clients, the server-side SteelHead must be running RiOS v7.0 or later and you must join the domain in Active Directory Integrated mode.
For information about setting Transparent mode, Manual and Auto-Delegation mode, see the SteelHead Management Console User’s Guide. For information about Active Directory Integrated mode, see Configuring the Server-Side SteelHead for Active Directory Integrated (Windows 2003/2008) and the SteelHead Management Console User’s Guide.