> For the complete documentation index, see [llms.txt](https://docs.ceruleansonar.com/c/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ceruleansonar.com/c/tracker-650/configuring-the-tracker-650/setting-the-static-ip-address.md).

# Setting the Static IP Address

If set to anything other than 0.0.0.0, the Static IP Address is the IP address used by the Tracker 650. 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.

Once set, the Tracker 650 will use this address regardless of the presence of a DHCP server.

The  Cerulean SonarView application can force the Tracker 650 to accept a new static IP address, even if you have accidentally set the static IP to an inaccessible address.

{% hint style="info" %}
The Tracker 650 will not allow you to set an address starting with 127 or 255. This is to protect you from yourself.
{% endhint %}


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