First, install Nmap

Open Terminal 

sudo apt-get install nmap

ip a

Output 

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:4e:7a:d4:98:5e brd ff:ff:ff:ff:ff:ff
    inet 192.168.9.165/24 brd 192.168.9.255 scope global dynamic noprefixroute enp2s0
       valid_lft 19607sec preferred_lft 19607sec
    inet6 2405:201:8015:6157:21b:176f:e77a:efbf/64 scope global temporary dynamic 
       valid_lft 4168sec preferred_lft 4168sec
    inet6 2405:201:8015:6157:49ac:772c:1823:11a0/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 4168sec preferred_lft 4168sec
    inet6 fe80::10a4:8dec:2824:2700/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

sudo nmap -sn  192.168.9.165/24

Output...

Starting Nmap 7.80 ( https://nmap.org ) at 2023-08-23 00:58 IST
Nmap scan report for reliance.reliance (192.168.29.1)
Host is up (0.00063s latency).
MAC Address: A8:DA:0C:C6:AD:16 (Unknown)
Nmap scan report for ebluedipu-H81 (192.168.9.165)
Host is up.
Nmap done: 256 IP addresses (2 hosts up) scanned in 2.04 seconds