Port 3079: lv-frontpanel — A Port with a Name Nobody Knows

What Port 3079 Is

Port 3079 sits in the registered port range — 1024 through 49151 — the middle tier of the port number space. Registered ports aren't reserved in the strict sense that well-known ports (0–1023) are, but they have official IANA assignments that document intended uses.

This one has an assignment. It's just not one most people have ever heard of.

The Official Assignment: LabVIEW Remote Front Panels

IANA registered port 3079 as lv-frontpanel — the communication port for LabVIEW's Remote Front Panel feature.¹ LabVIEW, made by National Instruments, is a graphical programming environment used in labs, test automation, and industrial control systems. Its Remote Front Panel feature lets engineers view and interact with a running LabVIEW program over a network, as if the instrument's interface were running locally.

Both TCP and UDP are registered for this port. In practice, LabVIEW deployments using Remote Front Panels are niche enough that you're unlikely to encounter this service unless you work in instrumentation or industrial automation.

What Actually Uses It

In the wild, port 3079 appears most often as part of gaming port ranges. Several Call of Duty titles — including Modern Warfare, Warzone, and Vanguard — use UDP ports 3074 through 3079 for multiplayer traffic.² Rainbow Six Vegas sweeps an even wider net, claiming UDP ports 3074 through 3174.³

When someone opens ports for online gaming, they typically paste a range from a support page without knowing which ports within that range do what. Port 3079 gets opened in bulk and never thought about again.

What This Says About Registered Ports

The registered port range is enormous — over 48,000 ports — and many assignments are for software used by small communities: instrumentation engineers, enterprise middleware, obscure protocols. These registrations matter because they reduce collisions: if LabVIEW has claimed 3079, another application should pick something else. But the claim doesn't prevent unofficial use, and it certainly doesn't mean the port is commonly found serving LabVIEW traffic.

Most registered ports spend their lives idle on most machines.

How to Check What's Listening

If port 3079 shows up in your network traffic and you want to know what's actually using it:

On Linux or macOS:

sudo ss -tlnp | grep 3079
# or
sudo lsof -i :3079

On Windows:

netstat -ano | findstr :3079
# Then look up the PID in Task Manager, or:
Get-Process -Id (Get-NetTCPConnection -LocalPort 3079).OwningProcess

If nothing returns, nothing is listening — the port is closed. If something does appear, the process name will tell you what opened it.