IP Address Odyssey (The Internet Unveiled) | Chillwave & Synthwave

Welcome to "IP Address Odyssey," an enlightening track from our playlist "The Internet Unveiled"! In this video, we'll delve into the world of IP addresses, the unique identifiers for devices on the internet, and how they function.

# What is an IP Address?

An IP (Internet Protocol) address is a unique string of numbers separated by periods (IPv4) or colons (IPv6) that identifies each device connected to a network. It's like a postal address for your computer, ensuring that data sent across the internet reaches the correct destination.

# How Do IP Addresses Work?

*IPv4 and IPv6:* There are two versions of IP addresses: IPv4 (e.g., 192.168.1.1) and IPv6 (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334). IPv4 is the older version with a limited number of addresses, while IPv6 is the newer version designed to accommodate the growing number of internet-connected devices.

*Public vs. Private IP Addresses:* Public IP addresses are used on the internet, while private IP addresses are used within private networks (e.g., homes, offices). Private IP addresses cannot be accessed directly from the internet.

*Static vs. Dynamic IP Addresses:* Static IP addresses remain constant, while dynamic IP addresses are assigned temporarily by a DHCP server each time a device connects to the network.

# Why Are IP Addresses Important?
IP addresses are essential for the functioning of the internet. They enable devices to find and communicate with each other, ensuring data is routed correctly across networks.

# Cheat Sheet for Beginners:

CIDR Notation Examples:
☑️ /24: 192.168.1.0/24 (256 addresses)
☑️ /16: 172.16.0.0/16 (65,536 addresses)
☑️ /12: 10.0.0.0/12 (1,048,576 addresses)

Reserved (Private) IP Ranges:
☑️ Class A: 10.0.0.0 to 10.255.255.255
☑️ Class B: 172.16.0.0 to 172.31.255.255
☑️ Class C: 192.168.0.0 to 192.168.255.255

Common IPv6 Prefixes:
☑️ Global Unicast: 2000::/3
☑️ Link-Local: FE80::/10
☑️ Unique Local: FC00::/7

Common Terminology:
ℹ️ IPv4: The fourth version of the Internet Protocol, using 32-bit addresses.
ℹ️ IPv6: The sixth version of the Internet Protocol, using 128-bit addresses.
ℹ️ Subnet Mask: A 32-bit number that divides an IP address into network and host parts.
ℹ️ Default Gateway: The device that routes traffic from a local network to other networks or the internet.
ℹ️ DHCP: Dynamic Host Configuration Protocol, a network management protocol used to dynamically assign IP addresses to devices.
ℹ️ NAT: Network Address Translation, a method of remapping one IP address space into another.

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