UDP ports and firewalling

TTN Network and Services
15

Depending on which package forwarder you’re using;

  1. 1700/udp (legacy/Semtech, incl “connection tracking” in iptables)
  2. 1883/tcp + 8883/tcp (MQTT forwarder aka MP packet forwarder) (any other name for this?)
  3. 1900/tcp + 1901/tcp (Go forwarder aka the “new packet forwarder” as it’s named in eg. New TTN Packet Forwarder available)
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