Port 12002
entexthigh · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | entexthigh |
Frequently asked questions
What is port 12002 used for?
Port 12002 is registered with the IANA for entexthigh (TCP/UDP). Description: IBM Enterprise Extender SNA COS High Priority.
Is port 12002 a well-known port?
No. Port 12002 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 12002 is open?
Locally on Linux with ss -tulpn | grep ':12002\b', on Windows with netstat -ano | findstr :12002. To test a remote host use Test-NetConnection <host> -Port 12002 in PowerShell or nc -zv <host> 12002 on Linux/macOS.
How do I open port 12002 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 12002/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=12002/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 12002" -Direction Inbound -Protocol TCP -LocalPort 12002 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | entexthigh | IBM Enterprise Extender SNA COS High Priority |
| UDP | entexthigh | IBM Enterprise Extender SNA COS High Priority |