UDP Flow Monitor

Purchase

All-in-one subscription

A subscription unlocks all IO Ninja capabilities including everything needed for UDP Flow Monitor —
for as low as ~$5/month!

Individual capabilities

As an alternative, you can purchase capabilities
needed for UDP Flow Monitor individually.

Required:

org.jancy.io.pcap

$20

Required for capturing network packets via Pcap.

Analyzing UDP traffic often means digging through raw packet data, which can be complex and error-prone—especially with fragmented datagrams that don’t match what the application sees. Filtering by UDP port at the packet level is also unreliable, making accurate analysis even harder.

The UDP Flow Monitor plugin simplifies UDP analysis by hiding low-level details and showing a clear, readable log of conversations, just like the UDP Socket plugin. The plugin supports easy filtering by address or port and runs on libpcap, the trusted cross-platform packet capture library.

Why UDP Flow Monitor?

Abstracted Data Flow

Instead of displaying fragmented or disjointed packet data, UDP Flow Monitor reconstructs UDP conversations in a way that reflects the actual data exchanged at the application level.

Reliable Filtering

You can filter UDP datagrams using the source or destination address—or even just the UDP port—without worrying about inconsistencies caused by raw packet-level filtering.

Powerful & Beautiful Logging Engine

The Ninja Scroll logging engine is the heart of IO Ninja! It offers many unique and useful features you won't find in other UDP flow monitors, such as interleaving binary data with informational messages for a clear timeline of events, switching between hex-view and plain-text view of binary data, a regex markup engine for highlighting data based on regular expressions, and many others!

Backed by libpcap

UDP Flow Monitor runs on libpcap, a widely trusted packet capture library. It provides a reliable backbone for real-time monitoring, and IO Ninja builds on top with scripting, visualization, and transmission.

Getting Started

Step 1. Start a Session

Begin by launching a UDP Flow Monitor session.

Step 2. Select a Device

Select a device for monitoring based on your use case.

Step 3. Start Capture

Click the "Start Capture" button, to the right of the "Device" selection field.

Step 4. Analyze UDP Packets

Analyze the log as UDP packets are captured.

Documentation

Resource
UDP Flow Monitor Documentation in the IO Ninja User Manual

Plugin	Relevance
UDP Terminal	Enables connectionless UDP communication with multiple nodes.
UDP Flow Analyzer	Layer version of UDP Flow Monitor; can be attached to Pcap Sniffer or Ethernet Tap.