Prohledavani WSD zarizeni je integrated v OS od Vista. viz napr. https://en.wikipedia.org/wiki/WS-Discovery
pro WSD zarizeni proste zapnout Network discovery https://www.isunshare.com/windows-10/turn-on-or-off-network-discovery-in-windows-10.html
Pak by se na lokalnim segmentu site mela zarizeni najit. Pokud jsou za routerem (jiny TCP/IP segment), je to jina pohadka.
A obavam se, ze na pakety typu CDP (resp FDP) Windows proste prdi :) Musi se pouzit nejaky SW treti strany.
EDIT: treba tohle, nikdy jsem nezkusil - https://qpdownload.com/cisco-cdp-monitor nebo https://www.hanewin.net/lldp-e.htm
EDIT2: a docela by me zajimalo, k cemu to potrebujes.