Is there a way to scan an entire network using nmap?

What I want to do is scan my network for all the devices that are currently connected to it.

2 Answers

Scan a network and find out which servers and devices are up and running:

nmap -sP 192.168.1.0/24

Scan a single host:

nmap 192.168.1.2

Scan multiple IP addresses or subnets:

nmap 192.168.1.1 192.168.1.2 192.168.1.3

Scan by excluding a host:

nmap 192.168.1.0/24 --exclude 192.168.1.10

That will exclude the host while scanning.

Fast nmap scanning for a network range:

nmap -F 192.168.1.10/24

To see packets sent and received received using nmap:

nmap --packet-trace 192.168.1.10

Scan for a port:

nmap -p 22 192.168.1.10

Scan for multiple ports:

nmap -p 80,22,21,111

Scan all ports using nmap:

nmap -p "*" 192.168.1.10

I hope that will help you. If you need to know more just run the command:

man nmap

4

for entire scan you should be use -p- it means all port scannig .You need to scan entire server with subnet you should use command 192.168.1.1-255.1.255 first you add hope you got it if i had any mistake please comment.

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