Port 1986

licensedaemon · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicelicensedaemon

Frequently asked questions

What is port 1986 used for?

Port 1986 is registered with the IANA for licensedaemon (TCP/UDP). Description: cisco license management.

Is port 1986 a well-known port?

No. Port 1986 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 1986 is open?

Locally on Linux with ss -tulpn | grep ':1986\b', on Windows with netstat -ano | findstr :1986. To test a remote host use Test-NetConnection <host> -Port 1986 in PowerShell or nc -zv <host> 1986 on Linux/macOS.

How do I open port 1986 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 1986/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1986/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1986" -Direction Inbound -Protocol TCP -LocalPort 1986 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPlicensedaemoncisco license management
UDPlicensedaemoncisco license management

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