CyberHunter
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// Other services

Port 3162: SFLM

Port 3162 is assigned by IANA to sflm (SFLM).

3162

How sflm works

Other services
client:3162sflmresponse client:3162sflmresponse

The client sends a request to port 3162 and the sflm 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
Registered (1024-49151)
Category
Other services
01 Security

Is port 3162 dangerous?

We have no specific security note for port 3162. 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 3162

ServicePortTransportDescriptionReferenceUpdated
sflm 3162 TCP, UDP SFLM - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3162, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3162'      # process listening on 3162
sudo lsof -nP -i :3162

macOS

sudo lsof -nP -i :3162

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3162 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3162
netstat -ano | findstr :3162

From another machine

nmap -p 3162 -sV <host>
sudo nmap -sU -p 3162 <host>
nc -zv <host> 3162

Block it in the firewall

sudo ufw deny 3162/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3162" -Direction Inbound -LocalPort 3162 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3162 used for?

Port 3162 is assigned by IANA to sflm (SFLM).

Is port 3162 TCP or UDP?

Port 3162 is registered for TCP and UDP.

Is it safe to open port 3162?

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 3162 is open?

On Linux run "ss -ltnup 'sport = :3162'", on macOS "lsof -nP -i :3162", and on Windows "netstat -ano | findstr :3162" to see the local process. From another machine, "nmap -p 3162 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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