Port 3880

igrs · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceigrs
Registered2003-10

Frequently asked questions

What is port 3880 used for?

Port 3880 is registered with the IANA for igrs (TCP/UDP). Description: IGRS.

Is port 3880 a well-known port?

No. Port 3880 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3880 is open?

Locally on Linux with ss -tulpn | grep ':3880\b', on Windows with netstat -ano | findstr :3880. To test a remote host use Test-NetConnection <host> -Port 3880 in PowerShell or nc -zv <host> 3880 on Linux/macOS.

How do I open port 3880 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3880/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3880/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3880" -Direction Inbound -Protocol TCP -LocalPort 3880 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPigrsIGRS
UDPigrsIGRS

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