Port 12001
entextnetwk · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | entextnetwk |
Frequently asked questions
What is port 12001 used for?
Port 12001 is registered with the IANA for entextnetwk (TCP/UDP). Description: IBM Enterprise Extender SNA COS Network Priority.
Is port 12001 a well-known port?
No. Port 12001 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 12001 is open?
Locally on Linux with ss -tulpn | grep ':12001\b', on Windows with netstat -ano | findstr :12001. To test a remote host use Test-NetConnection <host> -Port 12001 in PowerShell or nc -zv <host> 12001 on Linux/macOS.
How do I open port 12001 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 12001/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=12001/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 12001" -Direction Inbound -Protocol TCP -LocalPort 12001 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | entextnetwk | IBM Enterprise Extender SNA COS Network Priority |
| UDP | entextnetwk | IBM Enterprise Extender SNA COS Network Priority |