MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Technitium MAC Address Changer - Technitium MAC Address Changer (TMAC) is a freeware utility to instantly change or spoof MAC Address of any network card (NIC).
KiTTY - KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
WinPcap - Industry-standard tool for link-layer network access in Windows.
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
Npcap - Npcap is the Nmap Project's packet sniffing library for Windows.