Nmap doesn’t show physical hosts


~# nmap -sn 10.0.2.0/24 Starting Nmap 7.80 ( https://nmap.org ) at 2020-07-02 18:11 +01 Nmap scan report for 10.0.2.2 Host is up (0.00068s latency). MAC Address: 52:54:00:12:35:02 (QEMU virtual NIC) Nmap scan report for 10.0.2.3 Host is up (0.00067s latency). MAC Address: 52:54:00:12:35:03 (QEMU virtual NIC) Nmap scan report for 10.0.2.4 Host is up (0.00070s latency). MAC Address: 52:54:00:12:35:04 (QEMU virtual NIC) Nmap scan report for 10.0.2.15 Host is up. Nmap done: 256 IP addresses (4 hosts up) scanned in 2.04 seconds 

i use a virtual machine, and Nmap shows only the virtual hosts