Port 3348: Pangolin Laser — Where Network Packets Become Beams of Light

What Port 3348 Does

Port 3348 is registered with IANA for Pangolin Laser — control software and hardware for professional laser light shows. When Pangolin's QuickShow or BEYOND software communicates with its hardware controllers, this is the port where that conversation happens.

The hardware end is typically an FB3 or FB4 interface device that bridges the network to the actual laser hardware. Software sends commands over the network; the interface translates them into signals that drive galvanometer mirrors — tiny, precisely controlled mirrors that steer the laser beam dozens of thousands of times per second.

The result: a beam of light traces graphics, text, animations, and effects across a stage ceiling or screen, synchronized to music, to a beat, or to a show timeline.

Who Uses This

Pangolin Laser Systems, based in Orlando, Florida, is one of the dominant players in professional laser show control. Their software runs at:

• Music festivals and concerts
• Nightclubs and event venues
• Theme parks and theatrical productions
• Corporate events and architectural projections

QuickShow is their entry-level product (included free with hardware). BEYOND is the professional tier — it can coordinate lasers with DMX lighting, video, audio, and pyrotechnics in a unified show timeline.

The Honest Situation

Port 3348 shows up in IANA's registry as "pangolin-laser," but Pangolin's documentation doesn't make the port's specific role in their protocol architecture prominently available. It supports both TCP and UDP, which suggests it may serve different communication purposes within the system — reliable command delivery over TCP, lower-latency status or streaming over UDP. The exact protocol details are not publicly documented.

This is common for registered ports belonging to proprietary commercial software. The port is reserved. What travels through it is Pangolin's business.

Checking What's on This Port

If you see traffic on port 3348 and want to know what's behind it:

# macOS/Linux — show what process is listening
sudo lsof -i :3348

# Linux alternative
sudo ss -tlnp | grep 3348

# Windows
netstat -ano | findstr :3348
# Then look up the PID in Task Manager

If you're not running laser show software and something is listening on port 3348, it's worth investigating. The port has no known malware associations, but unexpected listeners are always worth a look.

Why Unassigned-Looking Ports Exist

Port 3348 sits in the registered port range (1024–49151). IANA maintains this registry to prevent collisions — if every application picked port numbers arbitrarily, two pieces of software would routinely try to use the same port and fail.

The registration process is relatively lightweight. A vendor submits a request, IANA reviews it, and if the port is available, it gets assigned. Pangolin registered 3348 for their laser control protocol. Now it's theirs, at least in the sense that no other software should claim it by default.

The registered range contains thousands of ports like this — legitimately assigned to real software serving real purposes, but obscure enough that most people will never encounter them. Port 3348 doesn't carry the Internet's email or DNS queries. It carries the commands that make lasers draw spirals at 30,000 points per second above a dance floor.