Firewall Port Forwarding - dl5di/OpenDV GitHub Wiki
If you want others to be able to link inbound to your system, you will need to configure your router to "port forward" certain ports to the PC that is running the gateway application. While routers use different terminology and configuration procedures, the concept is similar for all of them. Check out www.portforward.com for info on how to setup port forwarding on your particular router.
The DCS and DExtra ports are only used if DCS_LINK or DEXTRA_LINK are enabled, otherwise they are not used. The Remote Control protocol is disabled by default and does not have a default port number. If the Remote Control protocol is used then the appropriate port number will have to be opened on the firewall/router.
Most people will only need to port forward a small subset, typically:
Name Type and Port Number Description
Digital Voice Routing UDP, 40000 -For callsign, STARnet Digital Groups, and repeater routing
Digital Data Routing TCP, 40001 -For routing Ethernet packets over D-STAR (mostly TCP/IP)
DExtra UDP, 30001 -DExtra gateway and reflector linking, also used by DEXTRA_LINK
DCS UDP, 30051-30059 -DCS gateway and reflector linking, also used by DCS_LINK if enabled.
D-Plus UDP/TCP, 20001-20009 -D-Plus gateway and reflector linking (both UDP and TCP)
CCS UDP, 30061-30065 -CCS callsign or repeater routing
DV Dongle UDP, 50001 -DExtra Connections
Remote Control UDP, [you choose] -For the remote control protocol
Dashboard HTTP TCP, 80 or 443 -For HTTP access to the dashboard