Port 609
npmp-trap · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | npmp-trap |
Frequently asked questions
What is port 609 used for?
Port 609 is registered with the IANA for npmp-trap (TCP/UDP). Description: npmp-trap.
Is port 609 a well-known port?
Yes. Port 609 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 609 is open?
Locally on Linux with ss -tulpn | grep ':609\b', on Windows with netstat -ano | findstr :609. To test a remote host use Test-NetConnection <host> -Port 609 in PowerShell or nc -zv <host> 609 on Linux/macOS.
How do I open port 609 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 609/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=609/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 609" -Direction Inbound -Protocol TCP -LocalPort 609 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | npmp-trap | npmp-trap |
| UDP | npmp-trap | npmp-trap |