Arping

Arping is an ARP level ping utility. Its good for finding out if an IP is taken before you have routing to that subnet. You can also ping MAC addresses directly. Broadcasts a who-has ARP packet on the network and prints answers. VERY useful when you are trying to pick an unused IP for a net... Platforms: *nix

Find all devices on your network even if they have a firewall. Hardping Pro pings devices at the hardware level which means it can't be blocked by personal firewalls. This makes it great as a ping utility on Windows networks and for MAC discovery. It is an ideal tool to use on large networks... Platforms: Windows

Ping devices even if they have a firewall enabled. Hardping is a Hardware Level Ping utility. Because it pings devices at the hardware level, it can't be blocked by personal firewalls. It is an ideal tool to use on large networks or any Wi-Fi networks to determine exactly which devices are... Platforms: Windows

Scapy is a powerful interactive packet manipulation program. It is able to forge or decode packets of a wide number of protocols, send them on the wire, capture them, match requests and replies, and much more.It can easily handle most classical tasks like scanning, tracerouting, probing, unit... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris