IP Address Manipulation with Python

1. Check if an IP Address is Private

This program checks whether an IP address belongs to a private range.

import ipaddress

def check_private_ip(ip):

    try:

        ip_obj = ipaddress.ip_address(ip)

        return ip_obj.is_private

    except ValueError:

        return False

ip = "192.168.0.1"

print(f"Is {ip} private? {check_private_ip(ip)}")

#source code --> clcoding.com

Is 192.168.0.1 private? True

2. Calculate the Network Range from a CIDR Notation

This program calculates the network range from a given CIDR notation.

import ipaddress

def get_network_range(cidr):

    try:

        network = ipaddress.ip_network(cidr, strict=False)

        return (network.network_address, network.broadcast_address)

    except ValueError:

        return None

cidr = "192.168.1.0/24"

network_range = get_network_range(cidr)

if network_range:

    print(f"Network range: {network_range[0]} - {network_range[1]}")

#source code --> clcoding.com

Network range: 192.168.1.0 - 192.168.1.255

3. Check if an IP Address is in a Specific Network

This program checks if a given IP address is part of a specified network.

import ipaddress

def ip_in_network(ip, network):

    try:

        network_obj = ipaddress.ip_network(network, strict=False)

        ip_obj = ipaddress.ip_address(ip)

        return ip_obj in network_obj

    except ValueError:

        return False

ip = "192.168.1.10"

network = "192.168.1.0/24"

print(f"Is {ip} in network {network}? {ip_in_network(ip, network)}")

#source code --> clcoding.com

Is 192.168.1.10 in network 192.168.1.0/24? True

4. Generate All IP Addresses in a Network

This program generates all possible IP addresses within a given network.

import ipaddress

def generate_ips_in_network(network):

    try:

        network_obj = ipaddress.ip_network(network, strict=False)

        return [str(ip) for ip in network_obj.hosts()]

    except ValueError:

        return []

network = "192.168.1.0/30"

ips = generate_ips_in_network(network)

print(f"IP addresses in {network}: {ips}")

#source code --> clcoding.com

IP addresses in 192.168.1.0/30: ['192.168.1.1', '192.168.1.2']

5. Convert Integer to IPv4 Address

This program converts an integer back to its corresponding IPv4 address.

import ipaddress

def int_to_ipv4(integer):

    try:

        return str(ipaddress.IPv4Address(integer))

    except ValueError:

        return None

ipv4_int = 3232235777

print(f"Integer: {ipv4_int} -> IPv4: {int_to_ipv4(ipv4_int)}")

#source code --> clcoding.com

Integer: 3232235777 -> IPv4: 192.168.1.1