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Tell HN: Hacker News now supports IPv6

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Re: Tell HN: Hacker News now supports IPv6

#341

Post by greyface- »

throw0101d wrote: post #231
Y_Y wrote: post #227

Earlier quoted context omitted.

Is it possible for me, or worse, a normal person, to claim or request an ipv6 address that they can keep and use like a phone number? I'm used to dynamic allocation for residential ipv4 addresses and never bothered to beg ARIN for some or rent since from an ISP. Having an address you could keep and bring with you would be great and avoid a lot of the difficulties of DNS.

> Is it possible for me, or worse, a normal person, to claim or request an ipv6 address that they can keep and use like a phone number? Yes. You also have to get an ASN though, and an ISP which which will advertise both over BGP.

You don't strictly need an ASN in order to request address space, at least with ARIN. It's possible to have your own IPs, and arrange for someone else to announce them on your behalf, or use them on your local network without routing them globally.

(If you qualify for one, there's little downside to requesting it at the same time as your IPs, though)

Re: Tell HN: Hacker News now supports IPv6

#342

Post by patmorgan23 »

bilekas wrote: post #209
schroeding wrote: post #110

Earlier quoted context omitted.

For a practical demonstration: That's the reason decimal IPs work, too - i.e. http://3520653007/ is the same as http://209.216.230.207/ (and both will go to HN) - it's all just nice formating for our human brains. Nothing would stop us from formatting IPv6 the IPv4 way except the monstrous length of the resulting address.

My whole life I went without knowing decimal IPs were a thing..

A 32-bit number is a 32-bit number. Whether you represent it in dot notation, hex or decimal.

Re: Tell HN: Hacker News now supports IPv6

#343

Post by patmorgan23 »

ta1243 wrote: post #154
mike_d wrote: post #140

Earlier quoted context omitted.

ARIN recently handed out a /16 allocation to Capital One. That is one 65,025th of all of IPv6. A reasonable sized /32 allocation would have allowed for giving every ATM they operate worldwide its own globally routable /48.

I find the insistence of using /64s everywhere for networks frustrating. Any network larger than a /112 seems crazy, that's already 65k IPs per subnet. A /104 for every normal end user (256 subnets per user), or a /80 for massive companies like Capital One (4 billion subnets) should be more than enough.

Having a ludicrously large address space is kinda the point of IPv6.

You're not ment to utilize every address assigned to you. Trying to do so will always lead you to situations where you messed up and need to renumerate.

Re: Tell HN: Hacker News now supports IPv6

#344

Post by patmorgan23 »

rumdz wrote: post #36

Does ipv6 result in higher latencies? I could see larger addresses increasing latency, but then again I could also see a more efficient protocol resulting in lower net latency. I should probably read a book describing the differences.

NAT44 has a much larger effect on latency than 16 byte addresses.

Re: Tell HN: Hacker News now supports IPv6

#345

Post by patmorgan23 »

bqmjjx0kac wrote: post #55
rumdz wrote: post #36

Does ipv6 result in higher latencies? I could see larger addresses increasing latency, but then again I could also see a more efficient protocol resulting in lower net latency. I should probably read a book describing the differences.

Verizon Fios recently rolled out IPv6 last year and I swear IPv6 traffic is deprioritized. Sometimes it just cuts out entirely.

IIRC they disabled it again because the ONTs they have deployed have a firmware bug.

Re: Tell HN: Hacker News now supports IPv6

#346

Post by patmorgan23 »

apapapa wrote: post #252
mkl wrote: post #114

Earlier quoted context omitted.

"Pretty useless" is nonsense; Google works on IPv6, and 41% of Google's users access it via IPv6 [1]. "Most people" is also not true: most internet users use Google [2] (those not accessing it via IPv6 probably can't). [1] https://www.google.com/intl/en/ipv6/statistics.html [2] https://www.statista.com/statistics/216573/worldwide-market-...

Because you can access a website on both ipv4 and IPv6 doesn't really make IPv6 all that useful because you could disable it and still be able to access the same resource using ipv4...

How about all of the people who wouldn't be able to access the Internet because their country doesn't have enough v4 address. Or who's internet connection is better/faster because they're no longer behind a CG-NAT. (Think mobile carriers, developing countries, China, India, etc)

Re: Tell HN: Hacker News now supports IPv6

#347

Post by patmorgan23 »

ijhuygft776 wrote: post #281
kuon wrote: post #182

I am so surprised by the hate for IPv6 in this thread. I have been deploying IPv6 for more than ten years and it really improve many situations (beside larger addresses). I have to admit, there is a learning curve. But I want to encourage everybody involved in configuring computers to learn. Also I want to rent about Cisco not using /64 for link local by default, thus being incompatible with BSD systems. Link local m…

> I have been deploying IPv6 for more than ten years and it really improve many situations (beside larger addresses). for most people, it is transparent and doesn't improve anything... ipv6 could be disabled on their router and everything would be the same (I actually used to disable ipv6 at router level to avoid inadvertently leaking data on ipv6)

IPv6 is after than v4. If you're running v4, you're probably running NAT44, that adds latency as the NAT box has to do a table lookup and rewrite the header. V6 it just passes the packet through.

Re: Tell HN: Hacker News now supports IPv6

#348

Post by patmorgan23 »

uuddlrlrbaba wrote: post #259
kuon wrote: post #182

I am so surprised by the hate for IPv6 in this thread. I have been deploying IPv6 for more than ten years and it really improve many situations (beside larger addresses). I have to admit, there is a learning curve. But I want to encourage everybody involved in configuring computers to learn. Also I want to rent about Cisco not using /64 for link local by default, thus being incompatible with BSD systems. Link local m…

> I have to admit, there is a learning curve. But I want to encourage everybody involved in configuring computers to learn. This is probably most of it. My gripe is that there is essentially no realistic end to ipv4 in sight. So we as an industry carry the debt of securing, managing and troubleshooting parallel v4 and v6 networks for decades. If ipv4 had an EOL it'd make the transition so much better

IPv4 will have a slow lingering death. We'll reach a steady state where everyone's running dual stack or IPv6 behind a v4 proxy/CG-NAT. Then as V4-only traffic drops content networks/application providers will start to drop support.

That will drop the quality of the v4 internet, things will break and be slow to be fixed because who cares about the <10% v4 only traffic?

Re: Tell HN: Hacker News now supports IPv6

#349

Post by patmorgan23 »

ianburrell wrote: post #294
uuddlrlrbaba wrote: post #259

Earlier quoted context omitted.

> I have to admit, there is a learning curve. But I want to encourage everybody involved in configuring computers to learn. This is probably most of it. My gripe is that there is essentially no realistic end to ipv4 in sight. So we as an industry carry the debt of securing, managing and troubleshooting parallel v4 and v6 networks for decades. If ipv4 had an EOL it'd make the transition so much better

We have reached the point where it is feasible to run all new networks on IPv6 and treat IPv4 as legacy protocol on the edges and special devices. NAT64 works well enough for most IPv4 access. IPv6 network greatly simplifies networking. IPv4 will never go away, but will be smaller part of the Internet.

It will probably be 20-30 years before it goes away. But I think there will be a point where service providers that drop v4 support in their networks. At that point clients that need v4 connectivity can use 4-in-6 tunneling/VPNs.

It will absolutely hang around in small private networks for 50 years (there's still some token ring networks out there)

Re: Tell HN: Hacker News now supports IPv6

#350

Post by patmorgan23 »

commandersaki wrote: post #205
orangeboats wrote: post #184

Earlier quoted context omitted.

>I am so surprised by the hate for IPv6 in this thread. I find that HN views IPv6 noticeably more harshly than many other communities I have been a part of (e.g. networking subreddits and gaming communities). I am curious of the reason behind this.

My reason: IPv6 failed to fulfill its original objective.

Looks pretty successful to me. They increased the address size. People are lazy though and decided to keep v4.
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