VPC Peering
2 posts tagged VPC Peering.
You cannot borrow a peered VPC's NAT Gateway, but the reverse works
Routing a peered VPC's egress through your NAT Gateway is unsupported edge-to-edge routing. Sending NAT Gateway traffic through a peering to a peered destination is supported, and AWS documents a Return to Sender behaviour there that surprises people.
Networking4 minVPC peering has no reverse path forwarding, and AWS documents what that costs
A hub peered to two VPCs that share a CIDR will deliver one of them's replies to the other. AWS states the behaviour outright, and the configuration is legal to build because the overlap guardrail is narrower than people think.
Networking4 min