Comments on: Find Out All Live Hosts IP Addresses Connected on Network in Linux

By: Aaron Kili

Aaron Kili — Tue, 29 Nov 2016 22:02:22 +0000

In reply to Rms-Mit.

@Rms-Mit

That is correct, and because the we have been using IPv4 on our LANs, we did not mention any point concerning IPv6 support here. However, recent versions of Nmap offer support for IPv6 and you can read more from here: https://nmap.org/ and here is an additional resource providing more insights on scanning IPv6 addresses using Nmap: http://security.stackexchange.com/questions/51523/how-do-i-use-nmap-to-scan-a-range-of-ipv6-addresses.

By: Aaron Kili

Aaron Kili — Tue, 29 Nov 2016 21:40:08 +0000

In reply to Mace Moneta.

@Mace

This is an effective and reliable option as well, thanks for sharing this tip with us.

By: Rms-Mit

Rms-Mit — Tue, 29 Nov 2016 01:59:20 +0000

This will work on IPv4 but not on an IPv6 network. a sub-net on IPv6 has 64 bits of address space in each sub-net. It would take a 1000 years for a fast computer to scan that IP range. I was hoping that there might be a reference to some Neighbor discovery tool to achieve this on an IPv6 network

By: Mace Moneta

Mace Moneta — Mon, 28 Nov 2016 20:39:06 +0000

Using nmap is an active scan, but that’s not necessary for this purpose. All hosts arp to identify themselves to other hosts on the network, so simply displaying the arp table will show you what you want, instantly.

arp -n | grep -v “incomplete\|Flags” | sort -V

By: Ravi Saive

Ravi Saive — Mon, 28 Nov 2016 05:32:53 +0000

In reply to Mightyjordi. @Mighty, I suggest you to read our complete Nmap guide for finding out all live non assigned IP address at http://www.tecmint.com/nmap-network-security-scanner-in-kali-linux/