---
sourceDocument: Yokohama Operational Technology Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/operational-technology

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Operational Technology Management

ft:clusterId :

    - optm

bundleId :

    - optm

workflow :

    - Technology


---

# View and edit device to device connections

# View and edit device to device connections {#ariaid-title1}

Release version: Yokohama  
Updated June 20, 2025  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
View and edit device-to-device connections for your Operational Technology (OT) devices using the Device to Device Connections list in the Industrial Workspace.

## Before you begin

* Ensure you have the Industrial Core \[sn_ot_core\] plugin installed.
* Role required: admin
{#view-device-to-device-connections__ul_v2m_55p_sfc}

## About this task

The Device to Device Connections uses the `OTNetworkUtils` script include for the OT device look-up logic. The look-up logic identifies the corresponding Source and Destination CIs based on IP addresses, sites,
and managed networks.

The Device to Device Connections list shows fields from both the OT Device Network Connection \[sn_ot_device_network_connection\] table and the CI relationships \[cmdb_rel_ci\] table.

## Procedure

1. Navigate to AllIndustrial Workspace.
2. Select the List (![List icon]()) icon.
3. Under the OT Network module, select the Device to Device Connections list.
4. If needed, edit the following fields.  
   {#view-device-to-device-connections__table_ydg_5sp_sfc__entry__2}

   | Field | Description |
   |-|-|
   | Parent | Configuration item (CI) record of the source device. |
   | Child | CI record of the destination device. |
   | Source IP Address | IP address assigned to the source device. |
   | Source Device CI | CI record of the source device. |
   | Source MAC Address | MAC address of the source device. |
   | Destination IP Address | IP address assigned to the destination device. |
   | Destination Device CI | CI record of the destination device. |
   | Destination MAC Address | MAC address of the destination device. |
   | Destination Port | Network port used by the destination device for communication. |
   | Last Communication Time stamp | Date and time when the devices last communicated. Note: Any device-to-device connection record with a Last Communication Time stamp of 90 days or longer is deleted. To edit the Last Communication Time stamp, perform the following actions. 1. Navigate to AllInstance ScanTable Cleanup. 2. In the sn_ot_device_network_connection record, edit the Age in seconds field as needed. The default is <kbd class="ph userinput">7,776,000</kbd>. {#view-device-to-device-connections__ol_k3y_4rk_1gc} |
   | Transport Protocol | Protocol used for data transfer. For example, TCP, UDP. |
   | Application Protocol | Application-level protocol used. For example, HTTP, Modbus, FTP. |
   | Source Managed Network | Managed network segment where the source device resides. |
   | Destination Managed Network | Managed network segment where the destination device resides. |
   | Discovery Source | Source that's providing the connection information. |
   [Table 1. Device to Device Connections form]

   {#view-device-to-device-connections__table_ydg_5sp_sfc}
5. Select Save.

## Result

To view a device-to-device connection for an OT device, you can access the Device to Device Connections related list in the OT device record. For more information about related items and related lists for OT devices, see [Edit or view OT devices after import or discovery](https://servicenow-prod.fluidtopics.net/nGli_dbpbPPhQ_vXA_7Dmw "Use the options on the Operational Technology (OT) menu to edit or view detailed information for the OT devices in your enterprise.").

*[\>]: and then