CyberHunter
Local dataset, no network
// Other services

Port 1732: proxim

Port 1732 is assigned by IANA to proxim (proxim).

1732

How proxim works

Other services
client:1732proximresponse client:1732proximresponse

The client sends a request to port 1732 and the proxim 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 1732 dangerous?

We have no specific security note for port 1732. 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 1732

ServicePortTransportDescriptionReferenceUpdated
proxim 1732 TCP, UDP proxim - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1732, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1732'      # process listening on 1732
sudo lsof -nP -i :1732

macOS

sudo lsof -nP -i :1732

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1732 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1732
netstat -ano | findstr :1732

From another machine

nmap -p 1732 -sV <host>
sudo nmap -sU -p 1732 <host>
nc -zv <host> 1732

Block it in the firewall

sudo ufw deny 1732/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1732" -Direction Inbound -LocalPort 1732 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1732 used for?

Port 1732 is assigned by IANA to proxim (proxim).

Is port 1732 TCP or UDP?

Port 1732 is registered for TCP and UDP.

Is it safe to open port 1732?

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 1732 is open?

On Linux run "ss -ltnup 'sport = :1732'", on macOS "lsof -nP -i :1732", and on Windows "netstat -ano | findstr :1732" to see the local process. From another machine, "nmap -p 1732 <host>" shows whether it is reachable.

05 Related
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