# How to Rediscover Interfaces

When a new Interface is added to a device or an existing Interface is modified, OpManager allows you to manually rediscover your interfaces to update the changes. Follow the steps below to Rediscover the Interfaces:

![Rediscover interfaces in OpManager: Discover interfaces option under Interfaces tab](https://www.manageengine.com/network-monitoring/how-to/images/interfacerediscover.jpg)

- Go to the device snapshot page by clicking on the device name under **Inventory**.
- Click on the **Interfaces tab**. This shows a list of all the Interfaces currently monitored by OpManager.
- Click on the **Discover Interfaces** option.
- Now OpManager will perform an Interface Rediscovery and will show a list of Interfaces, including the ones that are already monitored. They are marked with different colors, each denoting their updated statuses which are as follows:
  - **No change:** The status of the interface has remained the same before and after the Rediscovery.
  - **Deleted from device:** The Interface has been physically removed from the device and is no longer available.
  - **Removed by user:** The Interface has been manually deleted from OpManager by the user.
  - **Added:** Newly added Interfaces are classified under this category.
  - **Changed:** When the Interface has been through changes such as: Display name, ifDescription, ifName, ifAlias, Admin Status, Oper Status, IFSpeed, In Speed, Out Speed, Interface Type, Physical address, IP Address, and Counter type.

![Rediscover interfaces in OpManager: Updated statuses of rediscovered devices](https://www.manageengine.com/network-monitoring/how-to/images/interfacecolorcodes.JPG)

- Click on the checkbox next to the newly added / modified Interfaces (The Interfaces that are already monitored will be selected by default) and click on **Save** button to add them to OpManager.
- Now the selected Interfaces have been Rediscovered successfully.

**Note:** An Interface is automatically Rediscovered by default every time when its parent device is Rediscovered or run through a Schedule discovery.

## Related Products

- [Network Monitoring](https://www.manageengine.com/network-monitoring/?relPrd)
- [Bandwidth Monitoring & Traffic Analysis](https://www.manageengine.com/products/netflow/?relPrd)
- [Network Configuration Management](https://www.manageengine.com/network-configuration-manager/?relPrd)
- [Switch Port & IP Address Management](https://www.manageengine.com/products/oputils/?relPrd)
- [Firewall Management](https://www.manageengine.com/products/firewall/?relPrd)
- [Network Monitoring Software for MSPs](https://www.manageengine.com/network-monitoring-msp/?relPrd)
- [IT Operations Management](https://www.manageengine.com/it-operations-management/)
- [Application Performance Monitoring](https://www.manageengine.com/products/applications_manager/?relPrd)