UDP 5003

ProtocolUDP
Port5003
LabelsFileMaker – name binding and transport

Synopsis

  • FileMaker Pro and FileMaker Server (Claris) use UDP port 5003 for LAN host discovery; clients broadcast on UDP 5003 to find available FileMaker servers, then establish the actual database connection over TCP 5003.
  • This is used in real deployments on Windows and macOS across many FileMaker versions (e.g., FileMaker Pro/Server 7–19).

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