The TCP Option Address (TOA) module is a kernel module that obtains the source IPv4 address from the option section of a TCP header.

The development environment for compiling the kernel module consists of:

• kernel headers and the module library
• the gcc compiler
• GNU Make tool

Download and decompress the source package:

https://github.com/Huawei/TCP_option_address/archive/master.zip

Enter the source code directory and compile the module:

cd src
make

Load the kernel module:

sudo insmod toa.ko

TOA is distributed under the terms of the GNU General Public License v2.0. The full terms and conditions of this license are detailed in the LICENSE file.