AWS IPv4 Estate Now Worth $4.5B

Re:AWS IPv4 Estate Now Worth $4.5B by Alifatisk on Monday September 18, 2023 @03:45AM (#37553425)

> To do so you need to "announce" this new /24 to the internet, using a protocol known as BGP. You can do that yourself, using a router, assuming you have an Autonomous system number (AS).

Is this how BGP hijacking is done?

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Re:AWS IPv4 Estate Now Worth $4.5B by erinnh on Monday September 18, 2023 @04:52AM (#37553805)

Technically, yes.

But good ISPs filter the prefixes their customers can announce to only those they actually own.

Then you have shitty providers that dont do it, and thats how you get BGP hijacking.

And you cant do this just from any connection, fyi.

You will need a datacenter, cloud host or residential ISP that actually allows you to peer with them and announce routes. This isnt a standard thing you get just by being a customer.

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