A city peers its VPC to a partner university network, then discovers overlapping CIDR blocks and broken routes between them. What is the fundamental problem?
Select an answer to reveal the explanation.
Short Explanation
Two networks claiming the same street numbers can't peer cleanly—routers don't know which house is which. Overlapping CIDRs need redesign, NAT, or non-overlapping ranges before peering works.
Full Explanation
VPC or VNet peering and many private connectivity patterns require non-overlapping address spaces so routes uniquely identify destinations. Overlapping CIDRs produce ambiguous routing and broken connectivity. Bucket versioning, flow-log settings, and mixed IP families are separate concerns and do not define the CIDR conflict itself.