---
title: "Limitations"
canonical: "https://docs.infoblox.com/space/DeploymentGuidevNIOSforOCI/1557364817/Limitations"
format: markdown
---
The following are current limitations of using Infoblox NIOS with OCI:

1. vNIOS Network Discovery(ND) appliances are not supported.
2. HA and LAN2 interfaces are not supported.
3. IPv6 configuration is not supported.
4. Virtual Advanced DNS Protection and virtual DNS Cache Acceleration are not supported.
5. In the current release, the Microsoft management feature and the security ecosystem features are not tested.
6. vDiscovery of Oracle Cloud Infrastructure resources is not supported.
7. If the vNIOS for OCI instance is using paravirtualized networking, there may be occasional packet drops of less than 1% when querying a large number of DNS queries per second as observed during our testing.
8. When you shut down a NIOS VM running on Oracle Cloud Infrastructure, even though NIOS shuts down, the Oracle Cloud Infrastructure console displays the VM state as RUNNING. To avoid this, Infoblox recommends that you shut down the NIOS VM from the Oracle Cloud Infrastructure console instead of using the NIOS CLI or Grid Manager.
9. If you see the following error on the Instance details page of the Oracle Cloud Infrastructure console several minutes after deploying a vNIOS instance, ignore it because NIOS continues to function properly: "This instance is unresponsive. Confirm that the OS and network are configured correctly, and check the infrastructure health metrics to see determine whether there is an ongoing infrastructure issue."