Port 3622
ff-lr-port · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ff-lr-port |
| Registered | 2002-10 |
Frequently asked questions
What is port 3622 used for?
Port 3622 is registered with the IANA for ff-lr-port (TCP/UDP). Description: FF LAN Redundancy Port.
Is port 3622 a well-known port?
No. Port 3622 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3622 is open?
Locally on Linux with ss -tulpn | grep ':3622\b', on Windows with netstat -ano | findstr :3622. To test a remote host use Test-NetConnection <host> -Port 3622 in PowerShell or nc -zv <host> 3622 on Linux/macOS.
How do I open port 3622 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3622/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3622/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3622" -Direction Inbound -Protocol TCP -LocalPort 3622 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ff-lr-port | FF LAN Redundancy Port |
| UDP | ff-lr-port | FF LAN Redundancy Port |