https://lists.nongnu.org/archive/html/gpsd-dev/2013-10/txtq0D_tjQhVw.txt http://catb.org/gpsd/AIVDM.html ais1.shipraiser.net 6494 http://kystverket.no/Maritime-tjenester/Meldings--og-informasjonstjenester/AIS/Brukartilgang-til-AIS-Norge/ 153.44.253.27:5631
Go look at implementing the TAG block as described in https://portal.helcom.fi/meetings/AIS%20EWG%2030-2019-615/MeetingDocuments/4-1%20AIS%20data%20format%20-%20IEC%20standard%2061162-450%20for%20Ethernet%20interconnections.pdf