Port 3222

glbp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceglbp

Frequently asked questions

What is port 3222 used for?

Port 3222 is registered with the IANA for glbp (TCP/UDP). Description: Gateway Load Balancing Pr.

Is port 3222 a well-known port?

No. Port 3222 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3222 is open?

Locally on Linux with ss -tulpn | grep ':3222\b', on Windows with netstat -ano | findstr :3222. To test a remote host use Test-NetConnection <host> -Port 3222 in PowerShell or nc -zv <host> 3222 on Linux/macOS.

How do I open port 3222 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3222/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3222/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3222" -Direction Inbound -Protocol TCP -LocalPort 3222 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPglbpGateway Load Balancing Pr
UDPglbpGateway Load Balancing Pr

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