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Comment Re:Dual stack failed? (Score 1) 320

Even a tunnel holding 2 devices is usually issued a /64 which will waste 2^64-4 addresses.

I take it you're assuming that each tunnel subnet requires a network and broadcast address? Nope. All you need for a point-to-point link is two IPs, so using a /64 you waste (2^64)-2 IPs. There's a reason I generally prefer using /127s for PtP links, although some implementations don't like that.

Granted, as many other IPv6 proponents are quick to point out, it's not like we need to worry that much about depleting the IP space, but damned if that kind of wasteful thinking doesn't remind me of how we got into such a mess with IPv4.

Comment Re:Dual stack failed? (Score 1) 320

If all the devices in your network only speak IPv6, then the missing you would just need a router that translates IPv6 to IPv4

AKA "NAT64"

(of course it will may also need to convert any DNS A record to a DNS AAAA record).

AKA "DNS64"

A subset of the IPv6 range is actually allocated to cover the IPv4 address range - basically any address with a maximum value of 2^32 in the 2^128 bit range is an IPv4 address. So your IPv4 address 216.34.181.45 as an IPv6 address is ::D822:B52D.

That's actually slightly dated; it'd now be ::ffff:d822:b52d (although ::ffff:216.34.181.45 works).

Submission + - After IPv4, how will the internet function? (networkworld.com) 1

An anonymous reader writes: There are 36 countries in the world that have over 100% per-capita usage of mobile phones, this is driving a real crunch on IPv4 addresses as more and more of these devices are data capable. The mobile network operators are acting fast to deploy IPv6 , and T-Mobile USA has had an IPv6-only trial going on for over 9 months now that only uses IPv6 addresses and NAT64 to bridge to IPv4 internet content. It is interesting to note that the original plan for IPv6 transition, dual-stack , has failed since IPv4 addresses are effectively already exhausted for many people that want them. Dual-stack also causes many other issues that has forced the IETF to generate work-arounds for end users called happy eyeballs , which conversely implies eyeballs are not happy with dual-stack, and a big stink around DNS white-listing . How will you ensure that your network, users, and services continue to work in the address fractured world of the future where some users only have IPv4 ( AT&T ), some users only have IPv6 (mobile and machine to machine as well as developing countries) and other internet nodes have both?

Comment Re:Backups (Score 0) 213

That assumes that each deleted account belongs to a unique subscriber. Each subscriber can have up to ten email addresses, so that's anywhere between $70,000 and $700,000. Plus, if they make the credit by-request-only, that would hugely reduce the cost (but would be typically evil of them).
The Internet

Journal Journal: Is Newegg.com down?

I have been trying to get to newegg.com for several hours, and cannot get there I get "Bad Request (Invalid Hostname)" anyone else having this issue? I tried to ping newegg, and it resolves the IP, but no responses comes from the site.
Media

Canadian Copyright Group Wants iPod Tax 408

soulxtc writes "Unable to define memory as a 'recording medium,' Canada's Private Copyright Collective goes directly after portable music player devices, memory cards, and anything else that can be used to make private copies. The PCC submitted a proposal to the country's Copyright Board that suggests levies of $5 (Canadian) on devices with up to 1GB of memory, $25 for 1-10 GB, $50 for 10-30 GB, and $75 for over 30 GB. If approved, this propoal would increase the price of a 30-GB iPod by 26%. These collections are intended to compensate artists and labels for the losses they suffer when people 'illegally' copy or transfer music. The PCC is also seeking a new $2 to $10 tax on memory cards. The backbone of digital photography has become tangled up in the fight for making sure music companies get every nickel and dime they feel that they deserve."

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