# CONFIGURATION

The configuration command causes the DVL to send its current configuration as a [$DVNVM](https://docs.ceruleansonar.com/c/tracker-650/communicating-with-the-tracker-650/outgoing-message-formats-tracker-650-to-host/usddvnvm-non-volatile-memory-and-configuration) 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

```