# Setting the Fallback IP Address

<figure><img src="/files/hKutFcOe3FeILTus7LRP" alt=""><figcaption></figcaption></figure>

The Fallback IP Address is the address used by the ROVLe if it is set to get a DHCP address and there is no DHCP server or the DHCP server declines to serve an address. It is your responsibility to make sure it is unique and on the proper subnet. Discussions of subnets are beyond the scope of this manual.

No netmask is necessary.

{% hint style="info" %}
The ROVLe will not allow you to set an address starting with 0, 127 or 255. This is to protect you from yourself.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ceruleansonar.com/c/ethernet-rov-locator/configuring-the-rovle/rovle-basic-configuration/setting-the-fallback-ip-address.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.