After configuring the virtual apps collection for Citrix-published resources, configure network IP ranges for resource launch. You can specify whether users' application or desktop launch traffic (ICA traffic) from specific network ranges is routed through NetScaler or through a direct connection to the XenApp server. You can also configure both external and internal access to the Citrix resources in your deployment.
When a user launches an application or desktop from the Intelligent Hub app or portal, if the user's IP address falls in a network range configured for NetScaler, the ICA traffic is routed through NetScaler to the XenApp server. If the IP address falls in the direct connection range, the ICA traffic is routed directly to the XenApp server.