Wine Network Permissions
Newer versions of Linux allow granular permission control to grant only required permission to specified files. This allow Wine to open a raw sockets for normal user.
The command to give network permission to wine is:
sudo setcap cap_net_raw+epi /usr/bin/wine-preloader
In the past, only super user (root) could access raw sockets, and running Wine as root is a bad idea.
Source: Wine FAQ