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I spent a week without IPv4 to understand IPv6 transition mechanisms

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Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#251

Post by voytec »

hot_gril wrote: post #237
voytec wrote: post #189

Earlier quoted context omitted.

[flagged]

I hope you're on the new version of everything then, not just in your area of expertise. You're expecting people to want something that's worse for them if anything, and calling them lazy isn't going to help. What would've helped is making IPv6 more user-friendly.

Not new version, but reliable version. I'm not a bleeding-edge fanatic, but I was testing IPv6 during the 6bone[1] phase while networking was not in my scope. It simply made sense to get to know the future.

The person who's comment I was responding to, is in denial 20 years later because they feel comfortable with IP addresses they can remember.

[1] https://en.wikipedia.org/wiki/6bone

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#252

Post by Gigachad »

mritun wrote: post #128
sp0ck wrote: post #97

My experience with IPv6. I have option to enable full dual stack with my ISP. After doing this I noticed that YT/FB/Google were significantly faster, however my kids started to complaing that some games began to have connectivity issues. Minecraft have problems to start. On a number of sites load time was noticebly longer. Switching off IPv6 as a experiment on one of kids PC solved all issues. My conslusion is that i…

If we’re talking anecdotally, I am running dual stack IPv6 and have had zero issues with Minecraft or any other game on my network on Xbox, Switch, iOS and PC.

Minecraft does not support v6 but I wonder what caused the issues. Maybe the presence of v6 support caused DNS to give a v6 address and this caused problems? Seems unusual.

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#253

Post by op00to »

birdman3131 wrote: post #243
philjohn wrote: post #206

Earlier quoted context omitted.

At that point, would a cheap VPS not work instead?

No. Game servers usually want high clock speed.

You’d just use the VPS as a proxy with a publicly accessible IP, and tunnel the connection back to your home. That would add latency that might be undesirable for a game, but maybe not.

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#254

Post by AtlasBarfed »

michaelt wrote: post #62
tenebrisalietum wrote: post #39

Earlier quoted context omitted.

> I don't want anything on my network to be globally routable. Then... don't route anything on your network. NAT is address translation, not routing. NAT makes it difficult for you to host services on your network, forcing dependency on cloud services, and when ISPs do it (CGNAT), it makes it just about impossible unless you want to thread your traffic back through a third-party service. If you want a good chance of…

Presumably what thesuitonym means is: Imagine if I'm a medium-sized ISP, or a medium-sized software company, or a medium-sized website. There's a bunch of hassle involved in deploying IPv6. Who knows what it'll do to my users' privacy? Or whether everyone's firewall rules will keep working right? Or whether it'll have some random impact on e-mail deliverability? Or something else? The main benefit of IPv6 is providin…

I've always posited that web services didn't become widespread because of the church of REST, or even that the HTTP protocol is that amazing.

It's because you could get through the firewall without a four month review with the firewall team.

Well, and you could reuse web tools and software. Ok, that's probably it, but the firewall convenience is DEFINITELY a thing.

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#255

Post by kitkat_new »

hot_gril wrote: post #172
sp0ck wrote: post #97

My experience with IPv6. I have option to enable full dual stack with my ISP. After doing this I noticed that YT/FB/Google were significantly faster, however my kids started to complaing that some games began to have connectivity issues. Minecraft have problems to start. On a number of sites load time was noticebly longer. Switching off IPv6 as a experiment on one of kids PC solved all issues. My conslusion is that i…

First thing I do setting up any network is disable ipv6. It's caused issues at least once, and that's one time too many for something that doesn't benefit me in any other way.

For me, the first thing is actually enabling ipv6

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#256

Post by op00to »

IshKebab wrote: post #68
ArchOversight wrote: post #30

Earlier quoted context omitted.

That's what a firewall is for, NAT does nothing here.

In theory, sure. In practice firewalls can be misconfigured. NAT doesn't have that problem.

Consumer NAT firewalls have uPnP enabled, right?

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#257

Post by somerandomqaguy »

I've still got some misgivings about IPv6.

Biggest one for me personally is that my current ISP doesn't give stable prefix. Power outages or firmware updates requiring a router reboot thus can cause the PD to be changed and potentially break firewall rules that are sensitive to the PD. In an absolute worst case, it also means that none of your hosts can reach the internet anymore if for whatever reason they're not updated of the prefix change.

No, the ISP is not supposed to that. But I don't see them changing this behavior any time soon. Yes there are ways to mitigate (ULA, mDNS, DNS, DHCPv6, etc) but now you're introducing additional complexity that didn't exist before into the network when I keep hearing how Ipv6 is supposed to reduce complexity. And IPv6 is complex enough to make my head spin without considering those workarounds.

Other issue I can think of off the top of my head is how to deal with an organization that would requires multi-WAN fail over or load balancing? The only solutions I've see thus far are far beyond my level of skill and budget. I assume also that there's similar problems when asking about a load balancer between multiple gateways to the internet.

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#258

Post by gxt »

throw0101c wrote: post #160
thesuitonym wrote: post #28

Everyone always goes with the "You don't need NAT, everything is globally routable!" argument, as if that's something that anybody wants. Everything on my network is going to go through my firewall anyway. I don't want anything on my network to be globally routable. Of course, this is not a good reason to not use IPv6, don't get me wrong. It's a problem that's easy to overcome, I just think it's not a good way to get…

> Everything on my network is going to go through my firewall anyway. I don't want anything on my network to be globally routable. Globally routable ≠ globally connectible. Your (stateful) firewall will still by default block any incoming connection attempts if they are not replies to an initial outgoing connection. It's just that it will no longer be necessary to go through the rigamarole of STUN, TURN, ICE, etc, th…

How does that protect privacy of the private network? I don't want to divulge any information about internal topology.

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#259

Post by op00to »

mavhc wrote: post #40
thesuitonym wrote: post #28

Everyone always goes with the "You don't need NAT, everything is globally routable!" argument, as if that's something that anybody wants. Everything on my network is going to go through my firewall anyway. I don't want anything on my network to be globally routable. Of course, this is not a good reason to not use IPv6, don't get me wrong. It's a problem that's easy to overcome, I just think it's not a good way to get…

NAT and a Firewall are two different concepts. What's wrong with a firewall that blocks everything by default, yet all your devices have a public IP?

Someone might know your IP, and somehow that information is delicious and irresistible to evil .. uh .. spammers?

Re: I spent a week without IPv4 to understand IPv6 transition mechanisms

#260

Post by SoftTalker »

dheera wrote: post #185
superkuh wrote: post #182

>There seems to be a lack of drive (judging by forum posts) to enable IPv6 on internet services by admins, either because they don’t care to, or it’s more work to manage a public IPv4 and public IPv6 presence If you run a mailserver adding ipv6 support is far more risk to your domain's mailserver reputation than it is worth. And if you're just a human person and not a megacorp that new ipv6 address, even if it it doe…

Yeah I have zero motivation to deal with IPv6. I also have all my IPv4 addresses memorized, and IPv6 addresses are too long to remember with all the hex-double-colon nonsense. If they could have turned 1.2.3.4 into 1.2.3.4.5.6 I'd probably use it, but instead they opted for some scary stuff that looks like d0ff::eefa::0010::faff:::://::92::0 which I'd rather not look at. Product management fail. Anyhow, IPv4 still wo…

Yep I’m in your camp. I have zero problems using IPv4 (and NAT when necessary), unless and until that stops working I’m staying with it.
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