IPv4: The Legacy Internet Protocol That Will Outlive Most of Us

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IPv4 has been the backbone of the internet since its inception and despite its well-known limitations it will not be fully deprecated in our lifetime. IPv6 adoption is growing, but IPv4 is deep in the global networking infrastructure, so its full phase out is a long way off. Much like the Agent Smith clones in… continue reading.
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My ISP is still on IPv4. What about you guys?

And what does the community think about Named Data Networking (NDN) and Information-Centric Networking (ICN)? We may get to that before IPv6 is fully adopted. :smile: Is there any chance we get to see any of this in our lifetime?

One thing that is guaranteed to stick with us is terminal lol:


Just more speculation, but as quantum computing advances, new networking protocols may be developed to support quantum communication. With AI advancements, probably also being able to dynamically allocate resources more efficiently than IPv6 and reduce overhead and improve scalability.

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I’d prefer IPv6 over ipv4
because IPv6 doesn’t use NAT
and no more port forwarding headache
still my isp doesn’t provide IPv6 yet , like many others.

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Maybe if the ISP adopts IPv6 then they won’t charge so much for a static IP. Then we can have several devices with their own public IP directly on the internet. However, just typing that statement sends shivers down me spine. With all the hacking and viruses out there, putting something out directly on the internet and not behind a firewall sounds so risky.

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@Halano same, I have a :spider_web: of NAT in my home lab. Would love an IPv6 block.

@shybry747

(More Freedom + More Open) ⇒ More Responsibility
More Responsibility ⇒ More Fun. # :)

Here’s an insightful discussion (Reddit) regarding that scary freedom.

Well this one sent me on a quest to find out what my ISP actually uses. It turns out behind the “modem” they provide it uses IP v4, but if I run host myip.opendns.com resolver1.opendns.com it shows a IP v6 address for communication with the outside world.
I think the biggest reason for IP v6 slow adoption is the lack of information for setting up firewalls, private networks (like a home network) for anyone that isn’t a firewall or router (think CISCO) admin.

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When I graduated in high school I used study IP v4, today I feel more comfortable talking about old protocol rather then IP v6, because I never went deeph on this aspect.

I am not network expert, but until now I did not saw so many IP v6 around, howover let’s say Italy is not the most technological advanced nation in the world…

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