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0 pointsballenf7y ago0 comments

A possible explanation is that the traffic from active use of 1.1.1.1 caused some backend service to get overloaded with traffic due to a faulty assumption that the address would never be used by customers. Anyone keep traceroutes while before the patch to see if there were errant stops or delays?

They had the choice of "fix the whole backend" or "block 1.x on the user end".

Guess we know which one was easier. If all this wild speculation is true, maybe they're working on a fix to the root cause and will roll back the patch when complete.

This would make the situation both due to incompetence and intentional.

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Phylter7y ago

1.1.1.1 is well known (based on the announcement from cloudflare anyway) to have tons of random traffic. That's part of the reason it wasn't implemented by others as a valid address for anything. Could the fact that they're simply allowing traffic at that address cause additional stress on AT&T's network?

I ask because I don't know. I figure any traffic headed that direction would go anyway it just wouldn't get routed very far with no valid destination.

Piskvorrr7y ago

Yeah. And there's also a lot of traffic going in Facebook's direction, for example. Hey, let's blackhole that too - and alleviate the stress on our network that comes from people using it. (In non-sarcastic tone: that doesn't make any sense.)

Phylter7y ago

Based on what I understand, the amount of traffic headed to 1.1.1.1 is much more significant. I agree with you though, that wouldn’t be justification to block it. It looks like they’re also blocking 1.0.0.1 and the relevant ipv6 addresses which shouldn’t have the same traffic issue.

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0 pointsballenf7y ago0 comments

They had the choice of "fix the whole backend" or "block 1.x on the user end".

Guess we know which one was easier. If all this wild speculation is true, maybe they're working on a fix to the root cause and will roll back the patch when complete.

This would make the situation both due to incompetence and intentional.

0 comments

Phylter7y ago

I ask because I don't know. I figure any traffic headed that direction would go anyway it just wouldn't get routed very far with no valid destination.

Piskvorrr7y ago

Phylter7y ago

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