Configuration Mode Commands : SteelHead Configuration Commands : CIFS, SMB, SMB2, and SMB3 Support Commands : protocol smb2 signing mode-type
  
protocol smb2 signing mode-type
Configures the RiOS SMB2 signing mode.
Syntax
[no] protocol smb2 signing mode-type {transparent | delegation}
Parameters
transparent
Enables SMB signed packets with transparent authentication.
Transparent mode uses the secure inner channel to authenticate and secure traffic, eliminating the need to define delegation trust. This is the default setting in RiOS v6.0 and later; however, if you enabled SMB signing in RiOS 5.5 and upgraded to v6.0 or later, delegation mode is enabled by default.
The advantage transparent mode offers over the delegation mode is that it simplifies the amount of configuration required. Delegate users do not have to be configured for this mode. Transparent mode uses NTLM end-to-end between the client and server-side SteelHead and the server-side SteelHead and the server. Note: If you have Windows 7 clients, you will need to use delegation mode.
delegation
Enables SMB signed packets with delegate user authentication. Select this mode if you have previously enabled SMB signing with RiOS 5.5.x or higher.
Use delegation mode if you want to optimize connections with Windows 7 clients. Using this mode requires setting up delegate users. Delegation mode uses NTLM between the client and server-side SteelHead and Kerberos between the server-side SteelHead and the server.
Usage
You can enable the RiOS SMB2 signing feature on a server-side SteelHead to alleviate latency in file access with CIFS acceleration while maintaining message security signatures. When sharing files, Windows provides the ability to sign CIFS messages to prevent man-in-the-middle attacks. Each CIFS message has a unique signature which prevents the message from being tampered with.
By default, RiOS SMB2 signing is disabled.
You must restart the optimization service after running this command. You must enable SMB2 before enabling SMB2 signing. For more information on SMB2, see the SteelHead Management Console User’s Guide
Example
amnesiac (config) # protocol smb2 signing mode-type transparent
amnesiac (config) # service restart
Product
SteelHead CX, SteelHead EX, SteelHead-v, SteelHead-c
Related Commands
show protocol cifs smb signing status, protocol domain-auth delegation auto-mode enable, Windows Domain Authentication Delegation Commands