User guide

3. Click Yes to download the ActiveX control. When the control has been downloaded, a
KVM session will start in a Video Viewer window or a serial session will start in a Telnet
Viewer window, depending on the supported action for the managed appliance.
If the required ActiveX control could not be loaded, a red X will appear in the
Avocent Session Viewer message box. The ActiveX control may fail to load for one of
the following reasons:
• The user did not select Always trust content from Avocent Huntsville Corporation.
• The DSView 3 software client security zone settings are not correct.
• The ActiveX control failed to properly install.
To download an ActiveX control on a DSView 3 software hub server using Windows
XP with Service Pack 2:
1. In a Units View window that contains target devices (see Accessing Units View windows
on page 118), click the link in the Action field or select an alternate action, if available.
You can also access a Unit Overview window for a target device and click the icon or
link for the session type (see Unit Overview Windows on page 125).
If this is the first time the ActiveX control has been requested by the DSView 3
software, an Avocent Session Viewer message box will appear.
2. Click in the top yellow bar. A pop-up menu will appear. Click Install. A Security Warning
dialog box will appear.
3. Click Install to install the ActiveX control.
Security zones
Internet Explorer restricts actions performed by the web browser, based on the security zone
membership of the web site being accessed. Each security zone typically has its own security
restrictions. The following four security zones are available in Internet Explorer:
• Trusted Sites - Web sites contained in the list of trusted sites.
• Restricted Sites - Web sites contained in the list of restricted sites.
• Local Intranet - Web sites accessed using a host name (for example, https://sun-e2-callisto).
• Internet - All other web sites, including those accessed using standard dot notation (for
example, https://10.0.0.1).
By default, the DSView 3 software operates correctly in the Internet, Local Intranet and Trusted
Sites security zones when accessing a hub server.
Chapter 4: Basic Operations 49