Product Documentation

Prerequisites for Installing NetScaler Gateway VPX on XenServer or VMware ESX

Jul 18, 2013

NetScaler Gateway VPX is supported on the following minimum versions of XenServer and VMware hypervisors:

  • XenServer 5 with Update 3
  • VMWare ESX or ESXi 3.5

The following table describes the minimum specifications for the hardware on which the hypervisor—XenServer, VMware ESX, or VMware ESXi—runs Access Gateway VPX Versions 9.3 or 10, and NetScaler Gateway VPX 10.1.

For VMware system requirements, see the VMware web site.

Minimum requirements for the physical host server include:

Table 1. Minimum Hardware Requirements for the Hypervisor Host


Two or more 64-bit x86 CPUs with virtual assist enabled.


At least 4 gigabytes (GB).

Disk space

Locally attached storage (PATA, SATA, SCSI) with minimum of 20 GB of disk space.


One 1 Gbps network adapter required; Recommended: Two network adapters of 1 Gbps each.

For NetScaler Gateway VPX installed on VMware, the network adapter should be E1000.

Important Notes

  • To run NetScaler Gateway VPX, you must enable hardware support for virtualization on the XenServer or VMware ESX host. Make sure that the BIOS option for virtualization support is enabled. Consult your BIOS documentation for more details.
  • XenServer installation creates a 4-GB partition for the XenServer host control domain; the remaining space is available for NetScaler Gateway VPX and other virtual machines.

XenServer and VMware must provide adequate virtual computing resources to the NetScaler Gateway VPX as listed in the following table.

Table 2. Virtual Computing Resources of NetScaler Gateway VPX


2 GB for NetScaler Gateway VPX

Virtual CPU (VCPU)

Two VCPUs minimum for NetScaler Gateway VPX

Virtual Network Interfaces

For NetScaler Gateway, two virtual network interfaces

Minimum storage requirement

12 GB

Important Note

  • If the virtual appliance is installed on ESX 3.5 or ESXi 3.5, you can install a maximum of 4 virtual network interfaces. If the virtual appliance is installed on ESX 4.0, the maximum is 10.

XenCenter System Requirements

XenCenter is a Windows-based application. The application cannot run on the same computer as the XenServer host. The following table describes the system requirements for XenCenter.
Table 3. System Requirements for XenCenter Installation

Operating system

Windows XP, Windows Server 2003, Windows Vista, or Windows 7

.NET Framework

Version 2.0, 3.0, 3.5, or 4


750 MHz minimum, 1 GHz or faster recommended


1 GB minimum, 2 GB recommended


100 Mbps or faster network adapter