Port 6111HP Softbench SPC

HP Softbench Sub-Process Control (SPC) port is used by legacy HP development tools to manage subprocesses and communicate between components, primarily within HP's Softbench integrated development environment. Supporting both TCP and UDP protocols, it facilitates process control and inter-tool messaging, enabling coordinated software development workflows through remote execution and debugging capabilities..

transport
tcp · udp

2 transports registered

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
4/10

caution

lookups
4,729

rank 946 of 993 · top 95%

Technical Details

what runs on :6111

HP Softbench Sub-Process Control (SPC) operates over port 6111, serving as the communication channel for HP's Softbench IDE components. It allows the environment to manage subprocesses, synchronize tasks, and enable developer tools to work collaboratively during software development cycles. The protocol facilitates control commands and messaging between the environment's GUI elements and underlying system processes.

The Softbench architecture leverages SPC to launch, monitor, and terminate development-related subprocesses, ensuring that resources are efficiently allocated and operations run smoothly. Communication over this port typically includes command sequences, status messages, and event notifications that enable debugging and build tools to interact seamlessly.

Although originally designed for UNIX workstations in the 1990s, some legacy environments might still use this port for maintaining backward compatibility in specialized enterprise setups. As it is rarely seen in modern infrastructures, traffic on port 6111 often signals presence of outdated or unsupported software.

Security Information

exposure of :6111

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

system averages 3.9 across 342 ports — this one sits 0.1 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Common security concerns with port 6111 revolve around:

  • Unauthorized access: Attackers may exploit unprotected SPC services to gain control over development environments or interfere with running subprocesses.
  • Data interception: Without encryption, commands and debugging data sent over this port could be intercepted and used for reconnaissance.
  • Service exploitation: Vulnerabilities in legacy Softbench components could be targeted by denial-of-service or remote code execution attacks.

Typical mitigation strategies include:

  • Disabling unused services: Turn off SPC if Softbench is no longer required.
  • Port filtering: Block external access to port 6111 on firewalls and network ACLs.
  • Segmentation: Place development tools on isolated networks to reduce the attack surface.
  • Monitoring: Employ intrusion detection to flag unexpected activity.
  • Encryption: Use secure tunnels (such as VPNs or SSH tunnels) if remote access over this port is necessary.

the 8 most looked-up other ports in system — 342 ports carry that label.

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted