Port 6635

mpls-udp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicempls-udp
ReferenceRFC 7510
Registered2015-02-10

Frequently asked questions

What is port 6635 used for?

Port 6635 is registered with the IANA for mpls-udp (TCP/UDP). Description: Reserved; Encapsulate MPLS packets in UDP tunnels..

Is port 6635 a well-known port?

No. Port 6635 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 6635 is open?

Locally on Linux with ss -tulpn | grep ':6635\b', on Windows with netstat -ano | findstr :6635. To test a remote host use Test-NetConnection <host> -Port 6635 in PowerShell or nc -zv <host> 6635 on Linux/macOS.

How do I open port 6635 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 6635/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6635/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6635" -Direction Inbound -Protocol TCP -LocalPort 6635 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCP–Reserved
UDPmpls-udpEncapsulate MPLS packets in UDP tunnels.

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