# Device Discovery and IP Addressing

Clicking the "Device Discovery" button initiates the device discovery process and shows any devices found. In this example it has found the Omniscan OS450. 

Cerulean sonars with Ethernet interfaces and Ping360 on Ethernet interface fully support the SonarView device discovery protocol. This protocol includes the ability to update the device's IP address.

<figure><img src="/files/CQJYEeS0e7G0j3i85LDI" alt=""><figcaption></figcaption></figure>

The discovery protocol will identify any devices attached to the network regardless of their current IP address. If the IP address is colored orange, it is because the device's IP address is not in the subnet of any of the current Ethernet connections, and so it cannot be addressed currently. In this case the Connect button will be disabled.

{% hint style="info" %}
You may have to temporarily disable your firewall to see devices whose IP address is not within the subnet of your ethernet adapters.
{% endhint %}

You have the opportunity to change the device's IP address from this screen by clicking <img src="/files/Dngl5Gjvd4PrM8cVOLKR" alt="" data-size="line">and entering the desired IP address then clicking Enter.

{% hint style="success" %}
Wi-Fi normally blocks Ethernet broadcast messages. If there is a wifi connection between your computer and the device, you may not be able to see the device. You may be able to change the wifi settings on your router to enable broadcast messages.&#x20;
{% endhint %}

If the IP address is in the subnet of your Ethernet connections, you can click "Connect" to open socket connection and activate the appropriate viewer module.

To find USB or serial devices (S500 on USB or serial, Ping sounders) you must check "Enable Serial Devices" at the bottom of Session Configurations.  Ping and Ping360 devices routed through BlueOS ports 9090 and 9092 will automatically be discovered without enabling this setting.

{% hint style="info" %}
S500 with V2.24 (or earlier) firmware - This early firmware version did not support discovery functions on Ethernet. You will have to connect via the USB port, check "Enable Serial Devices" (see above) to connect to the S500 in SonarView. Once connected you may update the firmware to the latest version and then continue as normal on Ethernet.
{% endhint %}

See the following sections for discussion of the user controls for each specific device.


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