Ways to specify the target for scanning in nmap

Methods for Defining the Target for Scanning in Nmap.

Nmap allows different ways to specify the target(s) you want to scan. Here are all the possible ways:

1. Single IP Address
2. Multiple IP Addresses
3. IP Range
4. CIDR Notation
5. Hostname (Domain Name)
6. Subnet Scan
7. Scanning from a File
8. Scanning an Entire Network

 

1. Single IP Address:

This is the simplest way to scan a single target.

Syntax:

nmap <IP_ADDRESS>

Example:

nmap 192.168.1.1

As a result, nmap will scan the device at 192.168.1.1 IP address and return some information about this IP.

 

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2. Multiple IP Addresses

Scan multiple IPs at once.

Syntax:

nmap <IP_ADDRESS 1> <IP_ADDRESS 2> <IP_ADDRESS 3> . . . .

Example:

nmap 192.168.2.11 192.168.34.12

As a result, Nmap scans all of these IP addresses and displays results for each.

 

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3. IP Range

When you want to scan a continuous range of IP addresses. 

Syntax:

nmap <START_IP>-<END_IP>

Example:

nmap 192.168.1.1-100

It scans all the IP addresses from 192.168.1.1 to 192.168.1.100.
Menas it scans 192.168.1.1, 192.168.1.2, 192.168.1.3, ... .. . . . .. . . . .. ., 192.168.1.99, 192.168.1.100. 

 

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4. CIDR Notation / Using subnet:

Scan a block of IP addresses using CIDR notation.

Syntax:

nmap <SUBNET>

Example:

nmap 192.168.1.0/24

As a result, Nmap scans all of these IP addresses and displays results for each.