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Publicly visible hosted-zone NS addresses do not expose the private record namespace on the internet. The reported evidence instead concerns hybrid on-premises-to-AWS queries require an inbound Resolver endpoint, not an outbound endpoint: inbound and outbound endpoint directions describe where queries enter or leave the VPC DNS service.

A forwarding rule controls names but does not increase packet-processing capacity by itself. The reported evidence instead concerns hybrid on-premises-to-AWS queries require an inbound Resolver endpoint, not an outbound endpoint: inbound and outbound endpoint directions describe where queries enter or leave the VPC DNS service.

A single DNS endpoint address can become an availability bottleneck and may violate service requirements. The reported evidence instead concerns hybrid on-premises-to-AWS queries require an inbound Resolver endpoint, not an outbound endpoint: inbound and outbound endpoint directions describe where queries enter or leave the VPC DNS service.

Resource ownership and spoke VPC ownership can remain separate while attachments are governed centrally. That property alone cannot account for the reported symptom; tGW peering does not automatically propagate all local routes between peer gateways.

An intermediary peering link does not forward packets between two separately peered VPCs. That property alone cannot account for the reported symptom; tGW peering does not automatically propagate all local routes between peer gateways.

Central policy can coordinate multi-region connectivity at a higher level than one regional Transit Gateway route table. That property alone cannot account for the reported symptom; tGW peering does not automatically propagate all local routes between peer gateways.

A dedicated physical path reduces internet exposure but is not itself equivalent to IPsec confidentiality. The decisive technical distinction is a public virtual interface provides BGP routing to supported public AWS service prefixes; public VIF traffic uses public AWS addresses even when the physical transport is dedicated.

The gateway decouples connection location from eligible attached private networks under documented rules. The reported evidence instead concerns a public virtual interface provides BGP routing to supported public AWS service prefixes: public VIF traffic uses public AWS addresses even when the physical transport is dedicated.

A redundant hybrid design must address circuit, location and device failure domains independently. That property alone cannot account for the reported symptom; public VIF traffic uses public AWS addresses even when the physical transport is dedicated.

The packet is blocked before the HTTP service can evaluate credentials or cookies. The decisive technical distinction is cloudWatch instance network counters aggregate bytes and lack per-remote-peer breakdown; interface byte totals measure volume while flow records attribute traffic to IPs and ports.

Negative reachability intent is a valid test: an unreachable result can be correct for restricted networks. The decisive technical distinction is cloudWatch instance network counters aggregate bytes and lack per-remote-peer breakdown; interface byte totals measure volume while flow records attribute traffic to IPs and ports.

Mirroring session configuration alone cannot overcome an unsupported source interface class. The decisive technical distinction is cloudWatch instance network counters aggregate bytes and lack per-remote-peer breakdown; interface byte totals measure volume while flow records attribute traffic to IPs and ports.

Aggregation windows combine multiple packets from a flow into one record. The needed control instead targets extended flow-log fields can include tcp-flags and traffic-path details for deeper classification; it succeeds when new records include TCP flag indicators for the controlled probe flow.

Generating records does not guarantee they remain accessible for regulatory evidence duration. It does not directly achieve the required result: new records include TCP flag indicators for the controlled probe flow. The constraint is that the default record shape may omit fields needed for reliable SYN-only or RST event classification.

Layer-three/four flow metadata cannot reveal encrypted HTTP resource paths. It does not directly achieve the required result: new records include TCP flag indicators for the controlled probe flow. The constraint is that the default record shape may omit fields needed for reliable SYN-only or RST event classification.

The virtual interface type determines whether connectivity targets private VPC addresses or public AWS endpoints. That property alone cannot account for the reported symptom; owning the Transit Gateway does not automatically grant authority to attach another account's Direct Connect gateway.

Transit VIF connectivity targets Transit Gateway associations instead of directly attaching every individual VPC. That property alone cannot account for the reported symptom; owning the Transit Gateway does not automatically grant authority to attach another account's Direct Connect gateway.

VGW allowed-prefix filters cannot force unsupported more-specific VPC routes to appear in BGP. The decisive technical distinction is cross-account Direct Connect gateway associations require proposal and acceptance by the responsible owners; owning the Transit Gateway does not automatically grant authority to attach another account's Direct Connect gateway.

Participant accounts can use subnet capacity without owning the networking VPC or its route tables. That adjustment does not address the controlling condition: a single backbone does not have to imply unrestricted route sharing among security zones. Verify routing tests confirm permitted segments connect while isolated segments have no transit route.

Hub connectivity can be segmented by controlling routes advertised to each attachment's associated table. The needed control instead targets cloud WAN segments can enforce policy-based isolation on the core network; it succeeds when routing tests confirm permitted segments connect while isolated segments have no transit route.

Mesh peering grows rapidly in connection and route-management complexity compared with centralized transit routing. That adjustment does not address the controlling condition: a single backbone does not have to imply unrestricted route sharing among security zones. Verify routing tests confirm permitted segments connect while isolated segments have no transit route.

Packets not sent to the stateful engine cannot be filtered by its configured stateful rules. That property alone cannot account for the reported symptom; stateful SG return allowance does not override a separate NACL blocking the return direction.

Independent per-packet checks cannot enforce policies requiring full flow context by themselves. The reported evidence instead concerns security groups and NACLs enforce distinct stateful and stateless network boundaries: stateful SG return allowance does not override a separate NACL blocking the return direction.

Endpoint private addressing does not automatically enforce least-privilege client access. The decisive technical distinction is security groups and NACLs enforce distinct stateful and stateless network boundaries; stateful SG return allowance does not override a separate NACL blocking the return direction.

A physical link does not select the intended VIF without the matching VLAN encapsulation. That adjustment does not address the controlling condition: IPsec negotiation cannot complete when intermediate firewall rules block required control packets. Verify both AWS VPN tunnels negotiate successfully after ACL correction.

A router talking to its own address or an incorrect peer cannot establish the required TCP BGP session. It does not directly achieve the required result: both AWS VPN tunnels negotiate successfully after ACL correction. The constraint is that IPsec negotiation cannot complete when intermediate firewall rules block required control packets.

An ASN mismatch prevents valid BGP neighbor establishment even with correct VLAN transport. That adjustment does not address the controlling condition: IPsec negotiation cannot complete when intermediate firewall rules block required control packets. Verify both AWS VPN tunnels negotiate successfully after ACL correction.

The new prefix needs explicit route visibility even when the existing original VPC addresses work. The decisive technical distinction is withdrawing an advertised BGP route can trigger alternate eligible hybrid routing paths; a viable physical circuit may carry no traffic for a destination whose specific route was withdrawn.

Session tracking breaks when outbound and return packets are steered through nonsharing firewall states. For the stated conditions, a viable physical circuit may carry no traffic for a destination whose specific route was withdrawn. The more specific mechanism is withdrawing an advertised BGP route can trigger alternate eligible hybrid routing paths.

An association change can alter BGP-originated reachability without deleting the physical VIF. That property alone cannot account for the reported symptom; a viable physical circuit may carry no traffic for a destination whose specific route was withdrawn.

Lack of a log record is not definitive proof of absence of every packet event. The reported evidence instead concerns ALB access logs capture HTTP request and response fields not available in VPC Flow Logs: application load-balancer logging carries different context from subnet-level network-flow telemetry.

Rule-level WAF records distinguish an edge policy block from a backend application response. The reported evidence instead concerns ALB access logs capture HTTP request and response fields not available in VPC Flow Logs: application load-balancer logging carries different context from subnet-level network-flow telemetry.

Edge delivery requests can bypass origin logs on cache hits, so origin-only auditing is incomplete. For the stated conditions, application load-balancer logging carries different context from subnet-level network-flow telemetry. The more specific mechanism is ALB access logs capture HTTP request and response fields not available in VPC Flow Logs.