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// Other services

Port 1708: gat-lmd

Port 1708 is assigned by IANA to gat-lmd (gat-lmd).

1708

How gat-lmd works

Other services
client:1708gat-lmdresponse client:1708gat-lmdresponse

The client sends a request to port 1708 and the gat-lmd 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 1708 dangerous?

We have no specific security note for port 1708. 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 1708

ServicePortTransportDescriptionReferenceUpdated
gat-lmd 1708 TCP, UDP gat-lmd - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1708, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1708'      # process listening on 1708
sudo lsof -nP -i :1708

macOS

sudo lsof -nP -i :1708

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1708 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1708
netstat -ano | findstr :1708

From another machine

nmap -p 1708 -sV <host>
sudo nmap -sU -p 1708 <host>
nc -zv <host> 1708

Block it in the firewall

sudo ufw deny 1708/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1708" -Direction Inbound -LocalPort 1708 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1708 used for?

Port 1708 is assigned by IANA to gat-lmd (gat-lmd).

Is port 1708 TCP or UDP?

Port 1708 is registered for TCP and UDP.

Is it safe to open port 1708?

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 1708 is open?

On Linux run "ss -ltnup 'sport = :1708'", on macOS "lsof -nP -i :1708", and on Windows "netstat -ano | findstr :1708" to see the local process. From another machine, "nmap -p 1708 <host>" shows whether it is reachable.

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