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Comment Re:Where is IPv7? (Score 1) 250

in gp example it would be: ::::::1.2.3.4 or ::::::1:2:3:4 or perhaps netname::1.2.3.4
there's tons of better ways then having to memorize 8 groupings of 4 letters.

The last one is already legal syntax:

baldur@ballerup1:~$ ping6 -c3 2a03:7900:64::8.8.8.8
PING 2a03:7900:64::8.8.8.8(2a03:7900:64::808:808) 56 data bytes
64 bytes from 2a03:7900:64::808:808: icmp_seq=1 ttl=43 time=28.7 ms
64 bytes from 2a03:7900:64::808:808: icmp_seq=2 ttl=43 time=29.0 ms
64 bytes from 2a03:7900:64::808:808: icmp_seq=3 ttl=43 time=29.7 ms

--- 2a03:7900:64::8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 28.737/29.158/29.730/0.419 ms

Comment Re:IP numbers are terrible (Score 1) 250

Nothing stops you from assigning fe80::1 to your printer #1 and so forth. Or you can use ULA to the same effect: fd00::1 to the first printer etc.

Or do it the sane way and use your prefix::1.

You do not have to use MAC based addresses you know. You can just assign the addresses manually (static) or you can use a DHCPv6 server.

Comment Re:Sometimes I wonder about half-assing it... (Score 2) 197

An actual example of an IPV6 address is as follows:

2001:0db8:85a3:0000:0000:8a2e:0370:7334

That is not an actual example of an IPv6 address. Lets try with some real examples instead:

google.com has IPv6 address 2a00:1450:4005:801::1007
gmail.com has IPv6 address 2a00:1450:400f:803::1016
facebook.com has IPv6 address 2a03:2880:2110:df07:face:b00c::1
arin.net has IPv6 address 2001:500:4:13::124
arin.net has IPv6 address 2001:500:4:13::125
ripe.net has IPv6 address 2001:67c:2e8:22::c100:68b
gigabit.dk has IPv6 address 2a00:7660:0:50::2

The last one is my own website. Your IPv6 address is as long as you want it to be. Many ISPs will assign you a /48 prefix, which is just 16 bits more than your IPv4. It is literally just an area code more (two bytes). What happens with the last 80 bits is up to you. You can make them all zero if you want to. And since all zero can be shortened to "::" that all just goes away.

As to those first 48 bits there is a system in it, which makes it easier to remember. Notice how all of the above has either 2001 or 2a0x as the first block? Also the second block is the ISP and most people only deal with a few of those. So you will quickly memorize that. The third block is basically your customer id within the ISP. And everything after that is yours to decide.

It is true that if you go with auto configuration addresses on your computer, you will get horrible long addresses. But if you are doing that, you are not the kind of person to deal with IP addresses. Personally I let my computer choose any long address it want, but for my servers I am picking something sane.

Comment Re:Some calculations (Score 4, Interesting) 56

The space shuttle was $450 million per mission not including development costs. That would lift 24 ton and a lot of volume to ISS. That was good for building the space station but perhaps overkill for the maintenance. They are not even using the full capability of the Dragon spacecraft.

The Dragon will only move 3.3 ton to the ISS. If you only count weight by dollar this is more expensive than a Space Shuttle launch. On the other hand you will get much more frequent deliveries which may be what is needed now.

If you count development costs, each Space Shuttle launch was 1.5 billion USD. Viewed this way, the CRS program for Space X is just one shuttle. And perhaps this is the correct way to do the accounting considering that the 1.6 billion that Space X receives also has to cover their development costs. I would expect that they can give a good discount on future launches, should NASA want more than 12.

Comment Re:Bait and Switch (Score 2) 282

Because it is unlikely to be true. Anyone can go to the Tesla website and check the prices. You will get the car at the price listed on the site, no more and no less.

If he is talking about financing, nothing forces you to finance the car through Tesla. In my part of the world one usually borrows the money in a bank and this is how it is done when buying from a dealer too.

Comment Re:Trouble Ahead (Score 1) 201

So, if you launch your spacecraft and it blows up raining debris down on my house - your home nation is clearly responsible under Article VII.

That does not mean that Denmark will pay you any damage on your house. It means you get to sue me under danish law. The danish citizen (me) will then pay you the damages, if so determined by the danish judge.

All the other speculation such as a $100 million USD bounds has no basis in danish law and so will not be required. If I can't pay you, that too will play out accordingly to danish laws. Most likely that means it is just too bad for you. You wont be getting anything from the danish government either way.

It is the only way a civilized country can act - by following the laws by that country. A country is not a person that you can say "they owe me because the treaty says they are responsible" - you are only owed money if the laws of the country concur. And let me tell you right ahead, there are no laws in Denmark to the effect that government will step in and pay damages on behalf of a citizen if said citizen is unable to pay. And neither is there any such law in the US to my knowledge. If a SpaceX rocket drops on my car, I get to sue SpaceX in an american court for a new car.

Comment Re:What evidence do you have that you're being DoS (Score 1) 319

I have a speed test site provided by my ISP, which usually runs fine, but when the "attacks" are in full swing my download speed drops to 1 or 2 mbps (should be around 16)

Your tiny DSL would be overwhelmed by even the smallest DoS attack imaginable. You would not be getting 1 or 2 Mbps - you would be getting absolutely nothing through at all.

It is more likely that your DSL is having trouble delivering the usual 16 Mbps due to electrical interference. Your ISP may be able to fix it by lowering your speed, which sucks, but it might be more stable. Or there might be nothing that can be done unless you can locate the source of the noise. Trouble is that the source might not anywhere near your home.

Comment Re:They must mean the IPv4 internet (Score 1) 97

There are actually 2^128 possible IPv6 addresses. Ok, then you can cut it down by looking at BGP etc as proposed. But consider that the minimum IPv6 network every user gets is a /64 = every user has 2^64 addresses on his home network, just scanning one single user is not feasible. Not to even think of scanning the entire internet.

You can split an IPv6 address into blocks. The first 32 bits tells you what ISP. This is the part where the BGP trick can help. The next 32 bits is the network number. And the remaining 64 bits known as the interface identifier are more or less random assigned by the computers.

You can assume that the user router will respond to the all zero interface identifier. It would therefore be feasible to scan the routers. Every single ISP would take as long as scanning the entire IPv4 internet. But that means they could do it in 45 minutes apparently (longer for bigger ISPs with more /32s). Of course the routers should be configured to ignore anything from outside, but so should the IPv4 routers.

But actually hitting peoples computers, printers and so on, even assuming no firewalls, is simply not possible. It is not even the bandwidth of the attacker that limits you, but the bandwidth of the target user. How long would it take to transfer 2^64 packets down the average users crappy DSL?

On top of that you get privacy extension. This is a system where your computer changes address at random at regular intervals (at least once a day). If you did spend millions of years to do a scan, you would very likely never find a working address because the targets are moving.

Comment Re: Here's the real problem (Score 1) 363

Wonder if that happens with electric car batteries - how much do those cost again?

EV batteries deteriorate just like all other batteries. What you want to ask is how fast? That depends entirely on what car. Just like the batteries lasted much better on his old Mac.

Because the EV battery is such an expensive part of the car and a car is expected to last much longer than a laptop, they will do more to make it last longer. One trick is to stop charging at 80% and never go below 20%. Laptops will happily go to 100% even knowing this will kill the batteries quickly. And the user might run

Another is to climate control the battery. More expensive EVs like Tesla has climate control on the battery, so it will always be at optimum temperature. I have never seen a laptop with this feature. Nissan left this out on the first Leaf and got in a lot of trouble when the batteries started to deteriorate too fast in Arizona.

You should also remember that less capacity is not the same as failed. You probably would not replace the battery in an old EV just because it has shorter range now. Instead you sell it to someone who is fine with the shorter range. You will pay for it by getting a lesser resale value, but this is still cheaper than replacing the battery.

The 12V battery in an ICE car is something completely different. You can not assume that EV batteries will fail in 5 years, just because your 12V battery is crap. In fact may EVs come with 8 years of warranty on the battery.

Almost all Toyota Prius all the way back to the 1997 models are still running on their original battery.

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