1. Address Length IPv4: Uses 32-bit addresses, so we have around 4.3 billion unique addresses. IPv6: Uses 128-bit addresses, so it can provide a huge number of addresses—about 340 undecillion. 2. Address Format IPv4: Addresses are written with four numbers separated by dots. IPv6: Addresses are writRead more
1. Address Length
- IPv4: Uses 32-bit addresses, so we have around 4.3 billion unique addresses.
- IPv6: Uses 128-bit addresses, so it can provide a huge number of addresses—about 340 undecillion.
2. Address Format
- IPv4: Addresses are written with four numbers separated by dots.
- IPv6: Addresses are written with eight groups of four letters and numbers separated by colons.
3. Header Complexity
- IPv4: The header has many parts, which can make it a bit complicated.
- IPv6: The header is simpler and faster to process.
4. Address Configuration
- IPv4: You can set addresses manually or use DHCP to do it automatically.
- IPv6: Can automatically assign addresses by itself and also uses DHCPv6.
5. NAT (Network Address Translation)
- IPv4: Often uses NAT because there aren’t enough addresses for every device.
- IPv6: Doesn’t need NAT because it has plenty of addresses for all devices.
6. Security
- IPv4: Security features are optional.
- IPv6: Has built-in security features, making it more secure.
7. Broadcasting
- IPv4: Can send data to all devices on a network at once.
- IPv6: Doesn’t use broadcasting but has other methods to send data.
8. Fragmentation
- IPv4: Both the sender and routers can break down large data packets.
- IPv6: Only the sender breaks down data packets; routers don’t.
So, IPv6 is like an upgraded version of IPv4, with more addresses, simpler setup, and better security.
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DNS, or Domain Name System, plays a crucial role in making the internet easy to use. Here's how: Imagine DNS as a giant phone book for the internet. When you type a website name (like www.example.com) into your browser, DNS translates that human-readable name into the numerical IP address that compuRead more
DNS, or Domain Name System, plays a crucial role in making the internet easy to use. Here’s how:
Imagine DNS as a giant phone book for the internet. When you type a website name (like http://www.example.com) into your browser, DNS translates that human-readable name into the numerical IP address that computers use to identify each other (like 192.0.2.1).
Without DNS, you’d have to remember complex number sequences for every website you want to visit. DNS does this translation quickly and automatically, allowing you to use simple names instead.
DNS also helps distribute internet traffic by allowing multiple IP addresses for popular websites. This lets users connect to servers that are closer or less busy, improving speed and reliability.
In essence, DNS acts as a bridge between how humans prefer to navigate the internet and how computers actually communicate, making the whole system work smoothly for users.
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