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// Other services

Port 3185: SuSE Meta PPPD

Port 3185 is assigned by IANA to smpppd (SuSE Meta PPPD).

3185

How smpppd works

Other services
client:3185smpppdresponse client:3185smpppdresponse

The client sends a request to port 3185 and the smpppd 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 3185 dangerous?

We have no specific security note for port 3185. 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 3185

ServicePortTransportDescriptionReferenceUpdated
smpppd 3185 TCP, UDP SuSE Meta PPPD - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3185, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3185'      # process listening on 3185
sudo lsof -nP -i :3185

macOS

sudo lsof -nP -i :3185

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3185 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3185
netstat -ano | findstr :3185

From another machine

nmap -p 3185 -sV <host>
sudo nmap -sU -p 3185 <host>
nc -zv <host> 3185

Block it in the firewall

sudo ufw deny 3185/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3185" -Direction Inbound -LocalPort 3185 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3185 used for?

Port 3185 is assigned by IANA to smpppd (SuSE Meta PPPD).

Is port 3185 TCP or UDP?

Port 3185 is registered for TCP and UDP.

Is it safe to open port 3185?

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 3185 is open?

On Linux run "ss -ltnup 'sport = :3185'", on macOS "lsof -nP -i :3185", and on Windows "netstat -ano | findstr :3185" to see the local process. From another machine, "nmap -p 3185 <host>" shows whether it is reachable.

05 Related
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