Port 862

twamp-control and twamp-test · TCP/UDP

RangeSystem/well-known port (0–1023)
ProtocolTCP/UDP
Servicetwamp-control and twamp-test
ReferenceRFC 5357, RFC 8545
Modified2018-12-21

Frequently asked questions

What is port 862 used for?

Port 862 is registered with the IANA for twamp-control and twamp-test (TCP/UDP). Description: TWAMP-Control; TWAMP-Test Receiver Port.

Is port 862 a well-known port?

Yes. Port 862 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.

How do I check whether port 862 is open?

Locally on Linux with ss -tulpn | grep ':862\b', on Windows with netstat -ano | findstr :862. To test a remote host use Test-NetConnection <host> -Port 862 in PowerShell or nc -zv <host> 862 on Linux/macOS.

How do I open port 862 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 862/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=862/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 862" -Direction Inbound -Protocol TCP -LocalPort 862 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPtwamp-controlTWAMP-Control
UDPtwamp-testTWAMP-Test Receiver Port

Nearby entries