# CONFIGURATION

The configuration command causes the DVL to send its current configuration as a [$DVNVM](/c/tracker-650/communicating-with-the-tracker-650/outgoing-message-formats-tracker-650-to-host/usddvnvm-non-volatile-memory-and-configuration.md) message followed by zero or more freeform ASCII-formatted lines. Any line sent to the DVL that starts with a question mark ‘?’ is also treated as a configuration command.

Examples:

CONFIGURATION

?

Example response (line breaks added for clarity, checksum '59' simulated):

```
=========== Tracker 650 ============ 

$DVNVM,Model=Tracker 650,Static IP address=0.0.0.0,Fallback IP address=192.168.2.8,
Host IP address=192.168.2.2:27000,MAVlink IP address=192.168.2.2:6040,
DVKFC messages=ON,Speed of sound=1484.0,Velocity adjustment=1.000,
DVPDL messages=OFF,DVPDX messages=ON,MAVlink send distance=ON,Firmware=Jun 15 2023,*59

MAVlink status: Disabled due to fatal connection error


```

```
Baseline IMU connected
Ethernet link is UP
Got DHCP reply TRUE
Using local IP address 10.0.3.30:50000
Using host IP address 255.255.255.255:27000
Static local IP address: 0.0.0.0
Declination set to 5.1
Coordinate frame mode = WORLD

```


---

# 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/tracker-650/communicating-with-the-tracker-650/commands-accepted-by-the-tracker-650/configuration.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.