IPV4 VS IPV6 What's the Difference? Which Is More Secure?

Every internet user must have encountered these two terminologies — IPv4 and IPv6.
  • What do they mean?
  • How they differ from each other?
  • Which one is best?

Most folks have these sorts of questions on IPv4 and IPv6.
In this article, we are getting to clear that up for you.
Today you'll learn the most difference between IPv4 and IPv6 and can determine which is best over others.
IPv4 may be a protocol to be used on packet-switched Link Layer networks (e.g. Ethernet).
It is one of the core protocols of standards-based internetworking methods on the web and was the primary version deployed for production within the ARPANET in 1983.
IPv4 uses 32-bit source and destination address fields which limit the address space to 4.3 billion addresses.
This limitation stimulated the event of IPv6 within the 1990s.
Well if you compare in between these two then IPv6 has more advanced features than IPv4.

It has the potential to supply an infinite number of addresses. it's replacing IPv4 to accommodate the growing number of networks worldwide and help solve the IP address exhaustion problem. IPv6 was developed by the web Engineering Task Force (IETF).

What is IPv4?

IPv4 stands for Internet Protocol version 4. it's the underlying technology that creates it possible for us to attach our devices to the online.
Whenever a tool accesses the web (whether it is a PC, Mac, smartphone, or another device), it's assigned a singular, numerical IP address like
To send data from one computer to a different through the online, a knowledge packet must be transferred across the network containing the IP addresses of both devices.
Without IP addresses, computers wouldn't be ready to communicate and send data to every other. It's essential to the infrastructure of the online.

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What is IPv6?

IPv6 is that the sixth revision to the web Protocol and therefore the successor to IPv4.
It functions similarly to IPv4 therein it provides the unique, numerical IP addresses necessary for Internet-enabled devices to speak.
But it has one major difference as it utilizes a 128-bit address.

IPv4: Where We Started?

You might be surprised to seek out that the fourth version of the web Protocol has been around since 1983.
Possibly even more surprising is that the incontrovertible fact that it’s still used for the overwhelming majority of the web.
And it’s worked rather well. the web doesn’t seem outdated, and our data transmission has worked fine for the past 25 years.

But there’s one big problem with IPv4:

  • We’ve run out of IP addresses.
  • An IP address is, simply, the situation of a tool on the web.
  • Your phone has one.
  • Your computer has one.
So does your gaming console (though they could not have unique addresses; we’ll get thereto during a moment).
Every data packet sent over the web contains two IP addresses:
The one belonging to the sender and therefore the one belonging to the receiver.

It’s how data moves around the internet. As you'll imagine, IP addresses are really important.
The problem with IPv4 is that IP addresses are 32-bit numbers (they appear as if “”). There are slightly below 4.3 billion 32-bit numbers. That’s an enormous number,
So how can we be running out?
One of the factors contributing to the exhaustion of IPv4 addresses is inefficient use.

Some large companies within the 1980s got many IP addresses, much more than they might expect to use.
There are tons of owned-but-unused IP addresses out there, which waste contributes to our running out of 32-bit IP addresses.

There’s been a push for people that own those unused IP addresses to offer them back in order that they are often employed by others, which has helped slow the speed of exhaustion.
But we’re just adding too many devices too quickly.
Which is where IPv6 comes in.

IPv6: this and therefore the Future

As I discussed, IPv6 was finalized in 1998, and it solves a variety of issues with IPv4.
The biggest improvement it brings to the table is 128-bit IP addresses (something like “2001:0db8:85a3:0000:0000:8a2e:0370:7334”).
Instead of being limited to 4.3 billion, the new protocol supports somewhere within the neighborhood of three .4×1038 addresses.

Benefits of IPv4
  • Reliable security
  • Large routing tasks
  • Video libraries and conferences
  • Flexible
Benefits of IPv6

While increasing the pool of addresses is one among the foremost often-talked about advantage of IPv6, there are other important technological changes in IPv6 which will improve the IP protocol:

  • No more NAT (Network Address Translation)
  • Auto-configuration
  • No more private address collisions
  • Better multicast routing
  • Simpler header format
  • Simplified, more efficient routing
  • Built-in authentication and privacy support
  • Flexible options and extensions
  • Easier administration (say good-bye to DHCP)
Should You Use IPv6?

Now that you’ve seen a number of the advantages of IPv6 and the way widespread it’s available, you would possibly be wondering if you ought to use it. In short, yes, you ought to.

The more widespread the adoption of the new technology, the higher. If your ISP offers it, and you've got a router capable of supporting it, it’s an honest idea to show it on.
Before you began to show it on, though, you ought to test to ascertain if you’re already using it.
Head to www.test-ipv6.com to ascertain if you’re using IPv6.

Here’s what you’ll see if you’re only using IPv4:
A native IPv6 connection allows you to connect on to the location in question, skipping the transition process.
This is what you would like for a full switch to IPv6.
If your router gives you the selection, you’ll want to settle on native IPv6.
If you are willing to see if a site is accepting IPv6 connections or not?
You can use the IPv6 validation tool.
If the location features a 128-bit IP address, you recognize that the location is IPv6-compatible.

How to Turn IPv6 Off

If you’d rather not use IPv6 (and we recommend not using it if your VPN can’t protect your traffic), you can simply tell your computer not to use it.
On Windows, go to Settings > Network & Internet > Network & Sharing Center (it’s at the bottom of the window).
Click Change adapter settings and then right-click your main internet connection (in my case, it’s my wifi connection) and select Properties.

Scroll through the list until you see Internet Protocol Version 6 (TCP/IPv6) and uncheck the box:

If you want to turn off IPv6 on  Mac, Goto System Preferences  followed by Network.

Click Advanced and then go to the TCP/IP tab.
From here, just change the Configure IPv6 drop-down menu to Off.

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IPV4 VS IPV6 What's the Difference? Which Is More Secure? IPV4 VS IPV6  What's the Difference? Which Is More Secure? Reviewed by Tech Wala Dost on May 10, 2020 Rating: 5

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