Enabling Data Collection for NetScaler Gateway Appliances Deployed in Single-Hop Mode

When you deploy NetScaler Gateway in single-hop mode, it is at the edge of the network. The Gateway instance provides proxy ICA connections to the desktop delivery infrastructure. Single-hop is the simplest and most common deployment. Single-hop mode provides security if an external user tries to access the internal network in an organization. In single-hop mode, users access the ADC appliances through a virtual private network (VPN).

To start collecting the reports, you must add the NetScaler Gateway appliance to the NetScaler Management and Analytis System (MAS) inventory and enable AppFlow on NetScaler MAS.

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To enable the AppFlow feature from NetScaler MAS:

  1. In a web browser, type the IP address of the NetScaler Management and Analytics System (for example,

  2. In User Name and Password, enter the administrator credentials.

  3. Navigate to Infrastructure > Instances, and select the NetScaler instance you want to enable analytics.

  4. From the Action drop-down, select Enable/Disable Insight.

  5. Select the VPN virtual servers, and click Enable AppFlow.

  6. In the Enable AppFlow field, type true, and select ICA.

  7. Click OK.

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Note: The following commands are executed in the background when you enable AppFlow in single-hop mode. These commands are explicitly specified here for troubleshooting purposes.

  • add appflow collector <name> -IPAddress <ip_addr>
  • add appflow action <name> -collectors <string>
  • set appflow param -flowRecordInterval <secs>
  • disable ns feature AppFlow
  • enable ns feature AppFlow
  • add appflow policy <name> <rule> <expression>
  • set appflow policy <name> -rule <expression>
  • bind vpn vserver <vsname> -policy <string> -type <type> -priority <positive_integer>
  • set vpn vserver <name> -appflowLog ENABLED
  • save ns config

EUEM virtual channel data is part of HDX Insight data that the NetScaler MAS receives from Gateway instances. EUEM virtual channel provides the data about ICA RTT. If EUEM virtual channel is not enabled, the remaining HDX Insight data are still displayed on NetScaler MAS.

Enabling Data Collection for NetScaler Gateway Appliances Deployed in Single-Hop Mode