root@pmx1:~# nmap -sP 192.168.1.0/24

Starting Nmap 7.40 ( https://nmap.org ) at 2018-04-14 12:18 EAT
Nmap scan report for pmx1.zuri.lcgroup.cz (192.168.1.1)
Host is up (0.00035s latency).
MAC Address: 38:0E:4D:86:83:1C (Unknown)
Nmap scan report for 192.168.1.5
Host is up (0.000032s latency).
MAC Address: 32:D4:F5:AB:B8:F0 (Unknown)
Nmap scan report for 192.168.1.6
Host is up (0.000033s latency).
MAC Address: 4A:28:37:86:19:98 (Unknown)
Nmap scan report for 192.168.1.7
Host is up (0.000062s latency).
MAC Address: 32:2C:B0:E1:9B:52 (Unknown)
Nmap scan report for 192.168.1.10
Host is up (0.0026s latency).
MAC Address: 00:60:65:43:32:0C (Bernecker & Rainer Industrie-elektronic Gmbh)
Nmap scan report for 192.168.1.11
Host is up (0.0039s latency).
MAC Address: 94:C6:91:17:D8:E7 (Unknown)
Nmap scan report for 192.168.1.12
Host is up (0.0012s latency).
MAC Address: 94:C6:91:17:D5:5F (Unknown)
Nmap scan report for 192.168.1.21
Host is up (-0.099s latency).
MAC Address: 00:60:65:42:1C:34 (Bernecker & Rainer Industrie-elektronic Gmbh)
Nmap scan report for 192.168.1.22
Host is up (-0.099s latency).
MAC Address: 00:60:65:42:1C:35 (Bernecker & Rainer Industrie-elektronic Gmbh)
Nmap scan report for 192.168.1.40
Host is up (-0.099s latency).
MAC Address: 00:60:65:43:AD:8A (Bernecker & Rainer Industrie-elektronic Gmbh)
Nmap scan report for 192.168.1.101
Host is up (-0.100s latency).
MAC Address: 7C:8B:CA:CB:31:DA (Unknown)
Nmap scan report for 192.168.1.102
Host is up (0.56s latency).
MAC Address: 0C:8B:FD:8B:93:9F (Intel Corporate)
Nmap scan report for 192.168.1.112
Host is up (0.0012s latency).
MAC Address: 40:6C:8F:0E:75:40 (Apple)
Nmap scan report for 192.168.1.133
Host is up (0.0013s latency).
MAC Address: 08:00:27:DC:3F:ED (Oracle VirtualBox virtual NIC)
Nmap scan report for 192.168.1.4
Host is up.
Nmap done: 256 IP addresses (15 hosts up) scanned in 15.59 seconds
root@pmx1:~#