windows 10 bash tcpdump: socket: Invalid argument
Based on https://github.com/Microsoft/WSL/issues/69, this is a limitation of the current Windows Subsystem for Linux. The Fall Creators update added a lot of functionality, but tcpdump still does not work.
Try nmap... It will output a page of errors but eventually works.
% sudo nmap -sP 192.168.1.0/24
WSL while utilizing a true linux kernel, is not a true linux operating system yet...