Port 20202

ipdtp-port · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceipdtp-port
Registered2003-01

Frequently asked questions

What is port 20202 used for?

Port 20202 is registered with the IANA for ipdtp-port (TCP/UDP). Description: IPD Tunneling Port.

Is port 20202 a well-known port?

No. Port 20202 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 20202 is open?

Locally on Linux with ss -tulpn | grep ':20202\b', on Windows with netstat -ano | findstr :20202. To test a remote host use Test-NetConnection <host> -Port 20202 in PowerShell or nc -zv <host> 20202 on Linux/macOS.

How do I open port 20202 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 20202/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=20202/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 20202" -Direction Inbound -Protocol TCP -LocalPort 20202 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPipdtp-portIPD Tunneling Port
UDPipdtp-portIPD Tunneling Port

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