Virtual Appliance Installation


Installing OPNids on a virtual machine can be done by using the cdrom iso image. Full instructions are available in chapter Initial Installation & Configuration .

General tips

For optimum performance and compatibility, these guides are given:

  • Minimum required RAM is 1 GB
  • Minimum recommended virtual disk size of 8GB
  • Disable all off-loading settings in Interfaces->Settings

VMware ESXi

VMware offers full instructions for installing FreeBSD, these can be found here.

To install the VMware tools just goto System->Firmware->Plugins and install os-vmware by clicking on the + sign next to it.



While other network setups may work fine, the e1000 driver seems to work best, certainly when utilizing the traffic shaper.


To install the Xen tools just goto System->Firmware->Plugins and install os-xen by clicking on the + sign next to it.



HyperV Generation 1 and 2 are supported out of the box, no additional drivers or tools are needed.


OPNids can be installed on all virtual machines that support FreeBSD (such as KVM, Bhyve, VirtualBox).

Common Issues

Some common issues have been reported for different virtual environments. You can find known solutions to these problems below.

If you problem is not listed always try the General tips as mentioned in the article first.

File copy failed during installation

This issue is most likely caused by low memory setting. Make sure your virtual OPNids installation has a minimum of 1GB of RAM.

Disk Errors on VMware

This issue can be caused by a defective drive. Changing drive mode to IDE has been reported to help for certain ESXi versions.

Installation failure on KVM

If you are using virtio for the root disk then try switching to sata mode.

NAT issues on XenServer

This issue has been reported to be solved by disabling cheksum offloading on both OPNids domU and Vifs.

Traffic Shaper does not work on VMware

If you are using vmxnet3 drivers try to switch to E1000.