[ralusek]

My IP: 1234

VPN A IP: 4321

VPN B IP: 6543

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Unless I'm missing something, the request would go like this:

VPN A sees that 1234 is going to facebook.com

VPN B sees that 4321 is going to facebook.com

facebook sees that request is coming from 6543

Am I misunderstanding the technology, or didn't VPN A see everything?

[monocasa]

VPN A only sees that the request is going to VPN B.

[sxg]

But VPN A has to relay the request for facebook.com to VPN B, meaning that VPN A has to be aware of the user's final destination. If my interpretation of this is incorrect, then how does VPN B become aware of the request for facebook.com?

[deelowe]

VPN A knows there was a request to VPN B, that's it. The request is encrypted on twice the client. VPN A removed it's encryption but is only left with an encrypted request to VPN B. VPN B then removes it's encryption and then forwards the request to fb.com.

[monocasa]

VPN A only sees a request to VPN B. Because of that they don't need to know anything about the final destination or even that there is a final destination beyond VPN B.

[simiones]

VPN A receives a packet that says "carry this (encrypted_ payload to VPN B Gateway IP". VPN B Gateway receives that packet and decrypts the payload. The payload says "send this (encrypted) payload from VPN A customer IP to facebook.com".