Port 2559

lstp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicelstp

Frequently asked questions

What is port 2559 used for?

Port 2559 is registered with the IANA for lstp (TCP/UDP). Description: LSTP.

Is port 2559 a well-known port?

No. Port 2559 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2559 is open?

Locally on Linux with ss -tulpn | grep ':2559\b', on Windows with netstat -ano | findstr :2559. To test a remote host use Test-NetConnection <host> -Port 2559 in PowerShell or nc -zv <host> 2559 on Linux/macOS.

How do I open port 2559 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2559/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2559/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2559" -Direction Inbound -Protocol TCP -LocalPort 2559 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPlstpLSTP
UDPlstpLSTP

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