SignalK UDP Packets on Port 2053

[DJSturgess]

Hi,

I've recently noticed that my RPI installation of SignalK is sending out a UDP packet on port 2053 every 10 seconds. This UDP port does not seem to have a recognised purpose. It looks to be some form of service announcement for Signal K webapps.

Does anyone know what these packets are and what their purpose is?

[tkurki]

This is for advertising the Signal K Server admin UI webapp to Navico plotters. SK shows up on Navico plotters/mfds as an icon that opens a web browser, but just recently people reported that the webpage does not load. We should probably add a separate setting for this, default to inactive and mark it as experimental.

You can disable it by adding this section in your settings.json file:

"interfaces": {
    "applicationData": true,
    "appstore": true,
    "logfiles": true,
    "mfd_webapp": false,
    "nmea-tcp": true,
    "playground": true,
    "plugins": true,
    "providers": true,
    "rest": true,
    "tcp": true,
    "webapps": true,
    "ws": true
  }

[DJSturgess]

Thanks. That worked perfectly.

I agree that that a separate setting for this would be good.

[mgf909]

Only just became aware of this "feature" from reading the discussion here. The icon appeared when i connected my Simrad to the wired ethernet switch this weekend.. alas it does nothing other than attempt to load something.

Any ideas where this is broken?

[sberl]

I think something changed in some recent software upgrade of the MFD software.
I tried it on my Zeus 3S 12" with software version 22.2 and only got a blank screen.