Using Dropwatch to monitor UDP drops in Ubuntu Linux 20.04

What is Dropwatch?

This tool will show place where Linux kernel drops/discards UDP packets.

Example screen:

Install dependencies:

sudo apt-get install -y libnl-3-dev libnl-genl-3-dev libreadline-dev binutils-dev

Then build it:

git clone https://github.com/nhorman/dropwatch.git

cd dropwatch

./autogen.sh

./configure 

make

And finally run tool:

./dropwatch -l kas