Search the VMware Knowledge Base (KB)
View by Article ID

Overview of VMware View USB redirection (1036200)

  • 17 Ratings


This article provides information on how the VMware USB Redirection functionality works in a VMware View environment.


The USB Redirection technology implemented by VMware improves the communication to the remote Desktop. When using USB Redirection, the USB traffic is separated and passed over port 32111. This provides for better mouse, screen, and keyboard performance.

When connected using the VMware View Client's RDP protocol, the USB redirection traffic uses port 32111. If the port 32111 is blocked, the existing connections to the View desktops is blocked. Any new connections detect the blocked port and USB redirection service is not used. However, the full RDP service through port 3389 works, including the USB drive connections to the VMware Client computer.

PCoIP Connections also use port 32111 for USB redirection traffic, but unlike RDP there is no other service to allow USB drive access.

To prevent the USB devices connected to the Client from being forwarded, you can use the Deny USB access policy in the VMware Administrator.
To prevent the USB devices connected to the Client from being forwarded:
  1. Select the desktop pool you want to prevent from connecting the USB.
  2. Click the Policies Tab.
  3. Under View policies, click Edit Policies.
  4. Select Deny USB access and click OK.
Note: This policy is configured on a per pool basis and all desktops in the pool are affected.

Additional Information

When the View Client uses the virtual channel on port 3389, you see these entries in the View logs.
WARN <NodeManagerWatcher> [MessageFrameWork] SocketChannel: Unable to connect to
INFO <NodeManagerWatcher> [wswc_ui] Revert to connecting client to agent via virtual channel support
For more information on ports used in the View environment, see:



See Also

Update History

01/14/2013 - Added information about USB redirection in View 5.1 to the Additional Information section

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


  • 17 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.

What can we do to improve this information? (4000 or fewer characters)

Please enter the Captcha code before clicking Submit.
  • 17 Ratings