CyberHunter
// VPN, tunnels & proxies

Port 17234: Integrius Secure Tunnel Protocol

Port 17234 is assigned by IANA to integrius-stp (Integrius Secure Tunnel Protocol).

17234

How integrius-stp works

VPN, tunnels & proxies
yougatewayintegrius-stp yougatewayintegrius-stp

Traffic is wrapped in a tunnel between the two ends, so the network in between only sees the tunnel.

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)
01 Security

Is port 17234 dangerous?

We have no specific security note for port 17234. Its risk depends on the program actually listening on it. General advice for vpn, tunnels & proxies services:

  • Patch VPN gateways quickly: they are a top initial access target.
  • Use certificates or MFA rather than shared secrets.
  • Investigate unexpected tunnels and proxies: they are also attacker tools.
02 Registry

IANA registry entries for port 17234

ServicePortTransportDescriptionReferenceUpdated
integrius-stp 17234 TCP, UDP Integrius Secure Tunnel Protocol - 2010-03-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 17234, and is it reachable?

Linux

sudo ss -ltnup 'sport = :17234'      # process listening on 17234
sudo lsof -nP -i :17234

macOS

sudo lsof -nP -i :17234

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 17234 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 17234
netstat -ano | findstr :17234

From another machine

nmap -p 17234 -sV <host>
sudo nmap -sU -p 17234 <host>
nc -zv <host> 17234

Block it in the firewall

sudo ufw deny 17234/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 17234" -Direction Inbound -LocalPort 17234 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 17234 used for?

Port 17234 is assigned by IANA to integrius-stp (Integrius Secure Tunnel Protocol).

Is port 17234 TCP or UDP?

Port 17234 is registered for TCP and UDP.

Is it safe to open port 17234?

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. Patch VPN gateways quickly: they are a top initial access target.

How do I check if port 17234 is open?

On Linux run "ss -ltnup 'sport = :17234'", on macOS "lsof -nP -i :17234", and on Windows "netstat -ano | findstr :17234" to see the local process. From another machine, "nmap -p 17234 <host>" shows whether it is reachable.

05 Related