Port 1248 sits in the registered port range (1024-49151), officially assigned to a service called "hermes." But the reality is more interesting than the registry suggests.
What Port 1248 Carries
The Hermes Protocol — Port 1248's official assignment is to the Hermes Standard, a vendor-independent communication protocol for Surface-Mount Technology (SMT) assembly machines.1 These are the automated systems that place components on circuit boards in electronics manufacturing. When a pick-and-place machine needs to tell the next machine in line "I'm done, your turn," that message flows through TCP port 1248.
iRODS Control Plane — Port 1248 is also the default control plane port for the Integrated Rule-Oriented Data System (iRODS), an open-source data management platform used by research institutions, government agencies, and commercial organizations.2 While iRODS uses port 1247 for primary data operations, port 1248 handles administrative commands—starting servers, checking status, managing the grid. If you're managing petabytes of genomic data or climate research, your control commands are probably hitting port 1248.
Enterprise Software — SAP BusinessObjects has been observed using port 1248 for the Central Management Engine (CME) service, though this appears to be dynamic port assignment rather than a deliberate choice.3 When enterprise software needs a port and 1248 is available, it gets used.
The Registered Port Reality
Port 1248 illustrates what actually happens in the registered port range. IANA assigns a port to one service, but there's no enforcement. If you need a port for your data grid control plane and 1248 isn't being used on your network, nothing stops you from using it.
The result: the same port number carries configuration messages between factory robots and administrative commands for scientific data repositories. Completely different protocols, completely different purposes, same address.
Checking What's Using Port 1248
On Linux or macOS:
On Windows:
If you see something listening on 1248, it's probably one of these scenarios:
- A manufacturing automation system running Hermes
- An iRODS data grid installation
- Enterprise software that grabbed an available port
- Something else entirely that needed a home
Why Registered Ports Matter
The registered port range (1024-49151) exists as middle ground. These ports require IANA registration but don't have the reserved status of well-known ports (0-1023). Organizations can register a port for their protocol, giving it a standardized address that avoids conflicts with well-known services.
But registration doesn't mean exclusive use. It means "this is the intended service if you see this port." In practice, any application can bind to any registered port that isn't already in use on that system.
Port 1248 shows this clearly: officially registered for factory automation, actively used by data management systems, occasionally grabbed by enterprise software. The registry provides guidance, not enforcement.
Security Note
Any open port is a potential entry point. If you're running iRODS or Hermes systems, port 1248 should only be accessible to trusted networks. If you see port 1248 open and you're not running either of these services, investigate what's using it.
Related Ports
- Port 1247 — Primary iRODS zone communication port
- Port 1024-49151 — The registered port range where 1248 lives
Frequently Asked Questions About Port 1248
此页面对您有帮助吗？