Port 13820
dsmcc-passthru · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | dsmcc-passthru |
| Reference | ISO/IEC 13818-6 MPEG-2 DSM-CC |
Frequently asked questions
What is port 13820 used for?
Port 13820 is registered with the IANA for dsmcc-passthru (TCP/UDP). Description: DSMCC Pass-Thru Messages.
Is port 13820 a well-known port?
No. Port 13820 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 13820 is open?
Locally on Linux with ss -tulpn | grep ':13820\b', on Windows with netstat -ano | findstr :13820. To test a remote host use Test-NetConnection <host> -Port 13820 in PowerShell or nc -zv <host> 13820 on Linux/macOS.
How do I open port 13820 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 13820/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=13820/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 13820" -Direction Inbound -Protocol TCP -LocalPort 13820 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | dsmcc-passthru | DSMCC Pass-Thru Messages |
| UDP | dsmcc-passthru | DSMCC Pass-Thru Messages |