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Are we past peak IPv4?

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Re: Are we past peak IPv4?

#21
post #5

I've always disable IPv6 on my router because I heard it wasn't secure since it was worthless to enable, and was another ingress into security. What benefits are there if any of using it?

The only practical reason you'd want to use ipv6 at home is if you want to expose multiple devices on your LAN to incoming TCP/UDP connections from the Internet without doing port mapping, since your ISP likely gives you a whole ipv6 block instead of just one address like with v4.

Re: Are we past peak IPv4?

#22
post #5

I've always disable IPv6 on my router because I heard it wasn't secure since it was worthless to enable, and was another ingress into security. What benefits are there if any of using it?

I mean, I guess if all you care about is getting from point A to point B, a bullet train has no benefit over a steam locomotive.

[deleted]

Re: Are we past peak IPv4?

#23
post #8

Earlier quoted context omitted.

It would also be very helpful if Mars had potable water and an electrical grid already set up for when we start living there.

Can you explain this analogy? The way you structured it, I feel like the analogy for "living on Mars" would have to be "merging company networks", but that happens all the time . If Mars is supposed to be IPv6 then I can't figure out what the utilities are supposed to represent.

It was in response to the implication that it would be nice if all the new companies that big businesses acquire have everything (like ipv6) "ready to go" upon acquisition.

I was making a "joke" that it's as likely as us getting to another planet and it being already setup to be habitable by humans.

Re: Are we past peak IPv4?

#24
post #2

Eh, no plans to move to v6 as someone who works on SaaS. 3.60/month is cheap for the few public IPs most need. In my ISP/cloud provider days sure I spent a lot of time implementing v6. But it's just nowhere near worth the cost to mess with particularly when you still want/need public v4 along side. Also, I don't understand how v6 could be responsible for these post peak prices. Most everyone still has the v4 addresse…

> I spent a lot of time implementing v6

Maybe I have a significantly different setup, but on the SaaS side this only requires binding to to ipv6 and adding an AAA record on your ingress usually.

Re: Are we past peak IPv4?

#25
post #10
post #6

Earlier quoted context omitted.

I've actually got a really great example where IPv6 is a huge win. Connecting networks. My company has bought other companies in the past and inevitably we've had IP space conflicts. Work arounds involved requiring users to connect to different VPNs to use services running in different networks. The end result was that we had to renumber huge chunks of the company and patch up the routing tables to make this work. If…

Couldn't you just expose those networks via non-overlapping blocks? Surely the entire private space wasn't spoken for.

> expose those networks via non-overlapping blocks

For this to work you need to expose the services to those non-overlapping blocks, ie write DNS views and associated shenanigans.

At this point you are half-way to IPv6, so why bother with implementing NAT44 at all?

Re: Are we past peak IPv4?

#26
post #7

My issue with IPv6 is online gaming doesn’t seem to support it at all. Valorant and similar online competitive games are IPv4 only; despite IPv6 having considering upsides for real time games. I think you could get real uptake from gamers if it was supported (due to possible latency benefits, even if they’re only small)

Well it's not an issue with IPv6 specifically, rather with companies not deploying it.

Re: Are we past peak IPv4?

#27
post #14

Earlier quoted context omitted.

I mean, I guess if all you care about is getting from point A to point B, a bullet train has no benefit over a steam locomotive.

There was zero speed difference or any changes I noticed last I configured my router, which is why it's still disabled. I haven't seen a single good use for enabling it.

Not having to use all sorts of NAT traversal hacks or use relay servers means P2P communications like video calls will be faster, but only if both sides are on IPv6, so yes, it’s a bit of a chicken and egg. Most mobile phones are dual-stack now, and apps like browsers do “happy eyeballs” where they attempt both IPv4 and IPv6 simultaneously and pick the best.

Re: Are we past peak IPv4?

#28

> IPv6 users now account for 45 per cent of Google visitors. It's hard to estimate how increasing percentage of users with IPv6 access is impacting the demand for public IPv4 addresses. My instinct is "not by a lot", but it's interesting to think about. Currently IPv6 does not allow you to simply do away with public IPv4 adderesses. On the ISP side that would mean providing a product that couldn't access a huge chunk…

I've often wondered about this chicken and egg problem. It seems that IPv6 is only really useful once we aren't forced to also provide IPv4.

Re: Are we past peak IPv4?

#29
post #5

I've always disable IPv6 on my router because I heard it wasn't secure since it was worthless to enable, and was another ingress into security. What benefits are there if any of using it?

The only practical reason you'd want to use ipv6 at home is if you want to expose multiple devices on your LAN to incoming TCP/UDP connections from the Internet without doing port mapping, since your ISP likely gives you a whole ipv6 block instead of just one address like with v4.

The real practical reason, everything else aside, is that you’ll need IPv6 connectivity to reach IPv6 services as the world continues to adopt and transition over to IPv6.
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