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Iran Goes Into IPv6 Blackout

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Re: Iran Goes Into IPv6 Blackout

#131

Post by cramsession »

anakaine wrote: post #110
switchbak wrote: post #88

Earlier quoted context omitted.

Sure, a US invasion of Iran would undoubtedly lead to good things. And how can you say the Kurds are friends of the USA (I'm presuming you mean friends of the USA) given how many times they've been abandoned? Just take a look at what happened to Libya, sometimes removing a "bad person" will cause a far worse situation to evolve. Like literal human slavery. I will never cease to be amazed at the amnesia that arises wh…

In Iran they have had several police forces join the protestors at this point. Hopefully its a theme that continues and includes the military. It only takes about 30% of the population supporting the regime plus military intervention to hold onto power. For some time now it seems that they've been below the 30% mark.

[flagged]

Re: Iran Goes Into IPv6 Blackout

#132

Post by logicchains »

ithkuil wrote: post #100
daedrdev wrote: post #84

Earlier quoted context omitted.

Wow its so nice this excuse just happens to shut down the internet when an astronomically unpopular regime faces vast protests after years of economic and political mismanagement

Apparently a lot of people in the west too are assuming that these protests are fueled by the west. At least that's the most likely explanation for why so many left leaning youth are not supporting Iranians while supporting Palestine. Apparently the fight is not about freedom but about (perceived) whiteness vs non-whiteness

>Apparently the fight is not about freedom but about (perceived) whiteness vs non-whiteness

But the Iranians are white. The name Iran is literally derived from "Aryan".

Re: Iran Goes Into IPv6 Blackout

#133

Post by GaggiX »

jrochkind1 wrote: post #126

I remember reading about how Venezuela had an internet blackout preceding US attack, presumably the blackout was an attack by US "cyber". Ah, here we are. https://securitybrief.co.uk/story/us-cyber-attack-on-venezue... The discussion here assumes that the Iranian government is responsible for this blackout. I actually don't understand enough about network routing to undestand the OP dashboard linked to or be able to…

Iran has shut down the internet nationwide several times before, this is nothing new when there are protests.

Re: Iran Goes Into IPv6 Blackout

#134

Post by labanimalster »

The discussion about Starlink is interesting, but with only ~0.1% of the population having access, the real story is the 99.9% who are cut off right now. The asymmetry between those who can broadcast to the world and those who can't is staggering — and even among that 0.1%, many are too afraid to broadcast anything, knowing the risks.

Re: Iran Goes Into IPv6 Blackout

#135

Post by throwaway894345 »

anakaine wrote: post #113
throwaway894345 wrote: post #66

Earlier quoted context omitted.

I'm also curious about LoRA / sneakernet applications. Have those been widely used in cases of censorship?

Lora is fine if you want to send a very short message. Its not useful for much else. Its also not a prevalent technology compared to general.internet/mobile phone. Organising resistance with it is the pipe dream of those who play with chips and antennas, but its not something thats going to happen when crowds and mobs form up in a situation like this. Not least because the hardware is not accessible to your average c…

Yeah, that makes sense. I’ve curious if there are sneakernet things for communicating messages between passing mobile devices? Something that uses exist hardware and is actually used in practice.

Re: Iran Goes Into IPv6 Blackout

#136

Post by helloaltalt »

flotzam wrote: post #123
helloaltalt wrote: post #112

Quick question but would tor work in this case? Is this the first country which genuinely effectively is able to ban tor? Because even in China, tor can work through bridges or some other methods and even Chinese firewalls aren't so extreme as iran right now. Edit: forgot that north korea exists so I guess the second country but even in north korea there was this chinese interviewer or japanese interviewer who contac…

Tor can reach IPv6 destinations through IPv4 entry nodes, if that's what your asking.

IPv4 is sanctioned/heavily restricted in iran as well, I mean very high filtering

The reason they didn't do this for ipv6 is because ipv6 obviously has a lot more addresses and so they just ended up blocking it whole.

Atleast that's what I read in one of the comment threads discussions in here

I don't think that in iran there would still be any available ipv4 entry nodes that they would allow. They would filter/block it as well?

Re: Iran Goes Into IPv6 Blackout

#137

Post by irusensei »

cramsession wrote: post #120
amir734jj wrote: post #90

I'm an Iranian and this protest is very different because it's not about a specific government policy ... It's about the totality of the regime. Unfortunately, government has been following the same old brutal playbook by killing protesters and cutting off the Internet.

[flagged]

>American: no you are wrong... let me educate you about your own struggle.

Re: Iran Goes Into IPv6 Blackout

#138

Post by H8crilA »

EthanHeilman wrote: post #60
tuhgdetzhh wrote: post #45

Earlier quoted context omitted.

Isn't it possible to jam the starlink receiver?

Yes, but it is more difficult than jamming a typical radio antenna because the starlink uses a directed beam rather than a omnidirectional radio broadcast. This either requires enormous amounts of power, targeting the satellite itself with a directed radio beam, or getting between the satellite and the ground station by bouncing a signal off the ionosphere. The above is for jamming directed beams in general. It is li…

Just to add more details.

Beamforming is essentially yet another way to achieve gain, just like one does with a directional antenna. The Starlink terminal achieves a gain of roughly 33 dB, which means it talks (and also listens) in the peak direction at power levels that are around 2000x higher than what one would achieve with isotropic antennas. 2000x sounds like a lot, but it is actually not impossible to reach. Consumer electronics sends at most a few Watts of RF power, but serious jammers of the type used by militaries can run kilowatts. If you consider the peak power used for brief moments of time then you can get as high as megawatts - the famous AWACS aircraft briefly flash half a continent at somewhere around 1 MW, with average TX power of ~single digit kilowatt.

Re: Iran Goes Into IPv6 Blackout

#139

Post by throwaway894345 »

BenjiWiebe wrote: post #105
throwaway894345 wrote: post #63

Earlier quoted context omitted.

I've got to think it's easy to find starlink receivers--I know they use a directed beam but they must give off a bunch of lateral noise, right? Or does Starlink use the same frequency bands as other common equipment such that it would be difficult to distinguish starlink signals from others? If the government was motivated they could surely start finding these receivers, right?

Well the better your beam is directed, the less lateral noise there is. A simple 3 element yagi has <1% of the power to the sides. It has more of the power straight behind it, but still 1% or so of the main lobe.

Is 1% still quite a lot louder than other things in the same band?

Re: Iran Goes Into IPv6 Blackout

#140

Post by SilentM68 »

coffeemug wrote: post #41
ronsor wrote: post #7

No competent network engineer wants to work in Iran, so government doesn't know how to block v6 properly. End result: just get rid of it entirely!

Two counterintuitive/surprising lessons I've come to appreciate: 1.Talent pools in nation states are extraordinarily deep-- much deeper than they appear. Countries can suffer from brain drain for decades (or centuries!) but when conditions call for it, superbly talented people somehow manifest. 2. The correlation between talent and conscience is weak. Nation states always manage to find superbly talented people to wo…

I tend to agree with most of what you said regarding all governments and countries. What may not be widely known is that some authoritarian regimes have been accused by expatriates of identifying and indoctrinating intellectually gifted children into their state-sponsored organizations for use by these entities for unmentionable purposes. Of course, it's next to impossible to find written documentation, with specific details since detailed evidence in such states are understandably hard to retrieve. Most of these accounts arrive through word of mouth.
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