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// Other services

Port 3175: T1_E1_Over_IP

Port 3175 is assigned by IANA to t1-e1-over-ip (T1_E1_Over_IP).

3175

How t1-e1-over-ip works

Other services
client:3175t1-e1-over-ipresponse client:3175t1-e1-over-ipresponse

The client sends a request to port 3175 and the t1-e1-over-ip 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 3175 dangerous?

We have no specific security note for port 3175. 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 3175

ServicePortTransportDescriptionReferenceUpdated
t1-e1-over-ip 3175 TCP, UDP T1_E1_Over_IP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3175, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3175'      # process listening on 3175
sudo lsof -nP -i :3175

macOS

sudo lsof -nP -i :3175

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3175 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3175
netstat -ano | findstr :3175

From another machine

nmap -p 3175 -sV <host>
sudo nmap -sU -p 3175 <host>
nc -zv <host> 3175

Block it in the firewall

sudo ufw deny 3175/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3175" -Direction Inbound -LocalPort 3175 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3175 used for?

Port 3175 is assigned by IANA to t1-e1-over-ip (T1_E1_Over_IP).

Is port 3175 TCP or UDP?

Port 3175 is registered for TCP and UDP.

Is it safe to open port 3175?

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 3175 is open?

On Linux run "ss -ltnup 'sport = :3175'", on macOS "lsof -nP -i :3175", and on Windows "netstat -ano | findstr :3175" to see the local process. From another machine, "nmap -p 3175 <host>" shows whether it is reachable.

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