Port 1767: cft-6 — Transfer CFT's management channel

What Port 1767 Is

Port 1767 carries traffic for Transfer CFT, an enterprise managed file transfer product made by Axway. It's registered with IANA under the name cft-6 — the sixth in a consecutive block of seven ports (1762–1768) that Transfer CFT claims for itself.

Within that block, port 1767 is used by Copilot, Transfer CFT's web-based interface for central governance and monitoring. If you see this port open on a server, there's a reasonable chance Transfer CFT is installed and its management interface is running.

Port 1767 also appears in connection with IPContact, a voice/video communication product that reportedly uses it alongside port 1766. This is an unofficial use — IANA's registration goes to Axway.

The Registered Port Range

Port 1767 sits in the registered ports range (1024–49151). This range is different from the well-known ports below 1024 — those are tightly controlled and carry protocols that shaped the Internet. Registered ports are assigned by IANA on request, but enforcement is loose. Any application can open any port it wants; registration is a reservation, not a lock.

The practical consequence: a registered port tells you what's supposed to be there. What's actually there depends on what's installed and running on the machine.

Transfer CFT's Seven Ports

Transfer CFT doesn't take just one port. It reserves a block:

This is common for enterprise software: claim a contiguous block, assign each port a specific role, avoid collisions with your own components. Port 1767 is the slot allocated for the governance layer talking to the monitoring interface. ¹

What's Actually Running on Your Port 1767

If you didn't install Transfer CFT and you see something on port 1767, you'll want to know what it is.

On Linux/macOS:

ss -tlnp | grep 1767
# or
lsof -i :1767

On Windows:

netstat -aon | findstr :1767
tasklist | findstr <PID>

The PID from netstat maps to a process in tasklist. That tells you exactly what's listening.

Why Unassigned (and Quietly Assigned) Ports Matter

Port 1767 is registered — but registered to software most people have never used. In security terms, this puts it in a gray zone. Scanners may flag it as suspicious simply because it's unfamiliar. Firewalls may block it by default. Administrators may not know what it is.

This is the quiet majority of the port space: tens of thousands of registered ports, each belonging to some product or protocol, most invisible to most people. They're not mysterious — they're just specific. The Internet runs on protocols everyone knows and on infrastructure nobody notices. Port 1767 is in the second category.