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UDP is a connectionless protocol; any number of clients can listen to data broadcasted from a specified port
without any additional load on the server and without increasing the actual network traffic. We recommend
using UDP protocol where possible, because the resources of the Device's CPU are limited.
NMEA 0183 is supported in virtually all marine applications. On the "NMEA Server" page
on the administration website, you can set up to three server ports (see Figure 2 on the next page). If TCP
network protocol is selected, up to three connections (from three different applications on one device,
or from three devices with one marine application running on each) are allowed at the same time. So three
servers allow nine connections in total.
In the case of using UDP protocol, the number of devices or applications used the data port is not limited.
We recommend using UDP protocol when possible.
The server port can be configured as bi-direction, read-only (Transmit Only) or write-only (Receive Only).
We recommend configuring data ports as read-only if possible, to prevent the network from flooding from
incorrectly configured applications.
Server 3 also supports "Debug" data protocol, designed to diagnose issues with software applications
(see Section XI), and "Memory" data protocol, to download the sailing data recorded to the internal
memory of the Router (see Section IX).
With the factory settings, the Router has the 1st server enabled and pre-configured use TCP port 1456
and the NMEA 0183 data protocol. To connect your application to the Router with factory settings:
• connect your laptop or mobile device to YDWR network;
• set the IP address 192.168.4.1 in the application settings;
• specify the TCP protocol and port 1456 in the application settings.
To use the Router with a Navionics Boating App, no settings are required in the app, but some changes
are required in the Router configuration:
• configure one of the Router servers to use UDP port 2000 and NMEA 0183 protocol;
• connect your smartphone or tablet to the Router's Wi-Fi network.
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