Port 2132: Solera-EPMAP — A Reserved Spot Nobody Uses

What Port 2132 Is

Port 2132 sits in the registered ports range (1024–49151). These ports are assigned by IANA upon request from vendors and developers who want a stable, official home for their software. IANA's registry lists port 2132 on both TCP and UDP as solera-epmap — SoleraTec End Point Map.¹

That name tells you two things: what company claimed it, and what concept it was built around.

The Endpoint Mapper Idea

An endpoint mapper solves a coordination problem. Instead of every network service running on a hardcoded port, services register their location with a central mapper. Clients connect to the mapper first, ask "where is service X?", and get directed to the right dynamic port.

Microsoft's version lives on port 135 (EPMAP) and underpins nearly every Windows RPC service — file sharing, Active Directory, remote management. Thousands of Windows services announce themselves through port 135 every day.

SoleraTec had the same idea for their own software stack and claimed port 2132 for it through IANA. The technical concept is sound. The company, however, is another story.

SoleraTec

SoleraTec LLC was a software company focused on video lifecycle management, archive, and storage solutions — mostly for enterprise video surveillance and media asset management. Their product line had nothing obviously in common with network infrastructure, which makes the endpoint mapper registration somewhat curious. It may have been an internal coordination mechanism for distributed components of their software suite.²

The company's web presence is minimal today. The IANA registration remains, but there is no known active deployment of solera-epmap in the wild. Port 2132 is, for practical purposes, a reserved parking spot that nobody parks in.

What You Might See on Port 2132

If you observe traffic on port 2132, it is almost certainly one of three things:

• Automated scanning — Security researchers and malicious actors scan registered ports systematically. The SANS Internet Storm Center logs scanning activity against port 2132.³
• Random ephemeral traffic — Operating systems sometimes select registered ports as source ports for outgoing connections. This is coincidental, not meaningful.
• Custom application use — A developer or vendor chose this port for their own software without knowing or caring about the IANA registration. This is common.

How to See What's Listening

To check if anything is using port 2132 on your machine:

macOS / Linux

ss -tlnp | grep 2132
# or
lsof -i :2132

Windows

netstat -ano | findstr :2132

If nothing appears, nothing is listening. That's the expected result on most systems.

Why This Port Exists at All

The registered ports range was designed to prevent collisions — to give vendors a way to say "this port is ours" and avoid two applications accidentally claiming the same number. The system works reasonably well for active, maintained software. For abandoned registrations like solera-epmap, it leaves ghost markers in the registry: technically claimed, practically empty.

There are thousands of these. They're not a problem. They're just the sediment of software history — companies that built things, registered ports, and eventually stopped.

Related Ports

• Port 135 — Microsoft EPMAP, the well-known endpoint mapper for Windows RPC
• Port 111 — Sun RPC portmapper (the Unix/Linux equivalent)