Port 2814: llm-csv — Loftware Label Manager's CSV Channel

What This Port Does

Port 2814 is officially registered with IANA as llm-csv — a service belonging to Loftware, an enterprise label management company whose software drives barcode printing in warehouses, logistics operations, and manufacturing facilities worldwide.¹

The name breaks down simply: LLM = Loftware Label Manager. CSV = comma-separated values. The service handles CSV-formatted command files — a mechanism Loftware's print server uses to receive label printing instructions from client applications.

When a warehouse management system needs to print a shipping label, it can send a CSV command file to the Loftware Print Server. Port 2814 is one of the channels that server listens on. It's quiet, specific, and almost entirely invisible to anyone not running Loftware's stack.

The Registered Port Range

Port 2814 lives in the registered ports range (1024–49151). These ports are:

• Assigned by IANA upon application from software vendors
• Not restricted by the operating system (no root required to bind them)
• Intended for specific services but not formally enforced

Anyone can technically use a registered port for anything. The registration is a reservation, not a lock. That said, running software on a registered port without good reason invites confusion — especially during network audits.

IANA Registration

The registration is recent — 2020 — which means this port spent decades as genuinely unassigned before Loftware claimed it.¹

Who Has This Open?

If you see port 2814 listening on a machine, you're almost certainly looking at:

• A Loftware Print Server or Loftware Label Manager installation
• A logistics, manufacturing, or shipping environment

If you see it on a general-purpose server or a machine with no Loftware software installed, that warrants a closer look.

How to Check What's Listening

Linux / macOS:

# Show what process is bound to port 2814
ss -tlnp | grep 2814

# Or with lsof
lsof -i :2814

Windows:

netstat -ano | findstr :2814

Take the PID from the last column and look it up in Task Manager, or run:

tasklist | findstr <PID>

Security Considerations

Port 2814 is obscure enough that it rarely appears in targeted attack campaigns. The realistic risks are:

• Misconfigured exposure — a Loftware server bound to 0.0.0.0 instead of an internal interface, reachable from outside the network
• Port squatting — malware or unauthorized software using an obscure registered port specifically because it's unlikely to be flagged

If you're not running Loftware software, this port should not be open. Full stop.