c10net

Python utility to make Chapter 10/11 file packets available to network tools or replay as UDP packets.

Features

• Convert Chapter 10 data into a PCAP file containing UDP packets for analysis.
• Replay Chapter 10 data over the network, preserving original timing.
• Filter by channel ID and channel type during conversion or replay.
• Specify destination port and IP.

Installation

Install utility from PyPI:

pip install c10net

Note: c10net uses libpcap for pcap packet generation.
On Windows, install Npcap and ensure it is available to your system.

Install for developers (Windows):

git clone https://github.com/atac/c10net
py -m venv .venv
.\.venv\Scripts\activate
pip install -e .[all]

The [all] group installs the [test] and [dev] dependency groups.

Usage

The package installs a console script c10net. Run c10net -h for top-level help.

convert_pcap

Convert Chapter 10 file to a PCAP file comprised of UDP packets.

c10net convert_pcap "C:\path\to\myfile.ch10"

With default options, a PCAP file is generated at "C:\path\to\myfile.pcap"

Use ch10net convert_pcap -h for more options.

replay

Generate UDP packets from Chapter 10 file and send over a network interface.

c10net replay "C:\path\to\myfile.ch10"

With default options, UDP packets are replayed over available network interface with destination IP 127.0.0.1 and port 5006.

Use ch10net replay -h for more options.

Network Options

• Use --port to set the destination port number of generated UDP packets.
• Use --ip to set the destination IP address of generated UDP packets.

Examples

Convert a Chapter 10 file to PCAP:

c10net convert_pcap input.ch10 --out output.pcap

Replay over the network (pulse setup packet every second):

c10net replay input.ch10 --pulse --ip 192.168.1.10 --port 49152

Testing

Run the test suite with pytest (after installing the optional [test] dependency group):

pytest -q

License

BSD-3-Clause