Install libnl-xfrm-3-200 by entering the following commands in the terminal:
sudo apt update sudo apt install libnl-xfrm-3-200
library for dealing with netlink sockets - package transformations
This is a library for applications dealing with netlink sockets. The library provides an interface for raw netlink messaging and various netlink family specific interfaces. . API to netlink based package transformations (such as encrypting their payloads).