DKMS Module for Realtek 8125 2.5G Ethernet Controller

Original source code obtained from here.

How to add DKMS module

1. Copy repo contents to /usr/src in a directory named r8125-9.003.05: sudo cp -R . /usr/src/r8125-9.003.05
2. Add DKMS module: sudo dkms add -m r8125 -v 9.003.05
3. Build DKMS module: sudo dkms build -m r8125 -v 9.003.05
4. Install DKMS module: sudo dkms install -m r8125 -v 9.003.05

Credits

DKMS instructions mainly obtained from here.