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// Other services

Port 316: decAuth

Port 316 is assigned by IANA to decauth (decAuth).

316

How decauth works

Other services
client:316decauthresponse client:316decauthresponse

The client sends a request to port 316 and the decauth service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Other services
01 Security

Is port 316 dangerous?

We have no specific security note for port 316. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 316

ServicePortTransportDescriptionReferenceUpdated
decauth 316 TCP, UDP decAuth - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 316, and is it reachable?

Linux

sudo ss -ltnup 'sport = :316'      # process listening on 316
sudo lsof -nP -i :316

macOS

sudo lsof -nP -i :316

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 316 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 316
netstat -ano | findstr :316

From another machine

nmap -p 316 -sV <host>
sudo nmap -sU -p 316 <host>
nc -zv <host> 316

Block it in the firewall

sudo ufw deny 316/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 316" -Direction Inbound -LocalPort 316 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 316 used for?

Port 316 is assigned by IANA to decauth (decAuth).

Is port 316 TCP or UDP?

Port 316 is registered for TCP and UDP.

Is it safe to open port 316?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 316 is open?

On Linux run "ss -ltnup 'sport = :316'", on macOS "lsof -nP -i :316", and on Windows "netstat -ano | findstr :316" to see the local process. From another machine, "nmap -p 316 <host>" shows whether it is reachable.

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