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// Other services

Port 2670: TVE Announce

Port 2670 is assigned by IANA to tve-announce (TVE Announce).

2670

How tve-announce works

Other services
client:2670tve-announceresponse client:2670tve-announceresponse

The client sends a request to port 2670 and the tve-announce 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 2670 dangerous?

We have no specific security note for port 2670. 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 2670

ServicePortTransportDescriptionReferenceUpdated
tve-announce 2670 TCP, UDP TVE Announce - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2670, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2670'      # process listening on 2670
sudo lsof -nP -i :2670

macOS

sudo lsof -nP -i :2670

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2670 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2670
netstat -ano | findstr :2670

From another machine

nmap -p 2670 -sV <host>
sudo nmap -sU -p 2670 <host>
nc -zv <host> 2670

Block it in the firewall

sudo ufw deny 2670/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2670" -Direction Inbound -LocalPort 2670 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2670 used for?

Port 2670 is assigned by IANA to tve-announce (TVE Announce).

Is port 2670 TCP or UDP?

Port 2670 is registered for TCP and UDP.

Is it safe to open port 2670?

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 2670 is open?

On Linux run "ss -ltnup 'sport = :2670'", on macOS "lsof -nP -i :2670", and on Windows "netstat -ano | findstr :2670" to see the local process. From another machine, "nmap -p 2670 <host>" shows whether it is reachable.

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