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Port 47NI FTP

*NI FTP (Network Innovations File Transfer Protocol)* is primarily associated with data transfer services tailored for specialized or embedded systems developed by Network Innovations. Supporting both TCP and UDP transport protocols, NI FTP enables efficient file exchange in proprietary or niche industrial and embedded environments where robust and straightforward communication is key. This port falls under the network and file transfer service category due to its intended purpose..

inFile TransferNetwork ServicesIoT
transport
tcp · udp

2 transports registered

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
3/10

caution

lookups
6,278

rank 804 of 993 · top 81%

Technical Details

what runs on :47

Port 47 is commonly recognized in the context of Generic Routing Encapsulation (GRE), but in this particular legacy reference, it relates to Network Innovations File Transfer Protocol (NI FTP). NI FTP provides file transfer capabilities optimized for embedded applications or specialized network devices that require a lightweight, efficient protocol beyond standard FTP (port 21). Leveraging both TCP and UDP support, it allows flexible communication depending on network conditions and application requirements.

This protocol enables rapid and reliable movement of files such as firmware updates, sensor data, configuration files, or logs between embedded devices and management servers. Its dual support of transport protocols means TCP can be used where guaranteed delivery is critical, while UDP allows faster, connectionless exchanges in trusted or low-latency environments.

The proprietary nature of NI FTP may mean integration with Network Innovations’ own hardware/software platforms, offering tailored command sets, minimal overhead, or enhanced performance optimizations specific to their product ecosystem. Due to its industrial focus, it may also integrate with automation control systems or telemetry infrastructures.

Security Information

exposure of :47

risk score

3/ 10caution

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

file transfer averages 4.1 across 114 ports — this one sits 1.1 below.

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

The primary security concerns with NI FTP on port 47 include:

  • Lack of encryption, making transferred data susceptible to interception or eavesdropping
  • Potential for unauthorized access if devices are exposed to untrusted networks
  • Vulnerability to replay attacks or man-in-the-middle attacks, especially when using UDP
  • Exploitation via malformed packets leading to denial-of-service or buffer overflow attacks

Mitigation strategies encompass:

  • Restricting port exposure by using firewalls to limit access strictly to trusted hosts/networks
  • Employing VPNs or application-layer encryption where possible to secure file transfers
  • Implementing strong authentication and access control on all devices using NI FTP
  • Regularly updating firmware to patch potential vulnerabilities
  • Monitoring network traffic for anomalous activity related to port 47, employing intrusion detection systems
  • Disabling UDP support if not required to reduce attack surface

Related Ports

all 114 in file transfer →

the 8 most looked-up other ports in file transfer — 114 ports carry that label.

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risk mix of the 8 listed

  • caution100%

1 of 8 encrypted