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by ignoramous 1870 days ago
Thanks. To confirm: You're pinging between the EC2s using their public DNS, right?

If AWS backbone is used automagically, I wonder why would anyone pay for Transit Gateways or VPC Peering rather than do mTLS between their cross-region instances or tunnel via Wireguard-esque transports like tailscale or defined.net, for example. Also, since when has this been the case, if you'd know?

I'm curious what the bandwidth charges are for EC2 to EC2 cross-region when using their public IPs / DNS? Same as VPC Peering?

1 comments

Yep, public IPs. I’m sure people do that, or use VPC peering if they want to use private IPs.

Expensive. VPC peering serves a different purpose, but pricing is the same.

Thanks a lot.

> Expensive.

VPC Peering bandwidth rates are $0.01 / GB. EC2 (public Internet?) bandwidth rates are $0.09 / GB. For xfers between EC2 to EC2 via AWS backbone, I assume I'd still be charged the public Internet bandwidth rates, right?