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Private routing to a service is not an authorization grant to every bucket in that service. The reported evidence instead concerns wAF CAPTCHA and Challenge actions have different user-interaction and token considerations: an interactive browser CAPTCHA can disrupt nonbrowser clients even when traffic is legitimate.

Standard service protections and an Advanced paid protection subscription have different coverage and support features. For the stated conditions, an interactive browser CAPTCHA can disrupt nonbrowser clients even when traffic is legitimate. The more specific mechanism is wAF CAPTCHA and Challenge actions have different user-interaction and token considerations.

Client-to-ALB acceptance does not imply that targets allow connections originated by the ALB. The reported evidence instead concerns wAF CAPTCHA and Challenge actions have different user-interaction and token considerations: an interactive browser CAPTCHA can disrupt nonbrowser clients even when traffic is legitimate.

Stateful inspection tracks connection context rather than evaluating packets entirely independently. The decisive technical distinction is a stateless aws:pass action stops further inspection rather than forwarding packets into the stateful engine; packets not sent to the stateful engine cannot be filtered by its configured stateful rules.

Asymmetric routing sends the reverse packets through missing firewall state or around inspection controls. For the stated conditions, packets not sent to the stateful engine cannot be filtered by its configured stateful rules. The more specific mechanism is a stateless aws:pass action stops further inspection rather than forwarding packets into the stateful engine.

Independent per-packet checks cannot enforce policies requiring full flow context by themselves. The decisive technical distinction is a stateless aws:pass action stops further inspection rather than forwarding packets into the stateful engine; packets not sent to the stateful engine cannot be filtered by its configured stateful rules.

Instance running state is distinct from the health check HTTP response required by the target group. That adjustment does not address the controlling condition: the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions. Verify clients validate the intended certificate and host/path routing remains functional.

Path-aware routing happens at HTTP layer seven before traffic is forwarded to a selected target. That adjustment does not address the controlling condition: the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions. Verify clients validate the intended certificate and host/path routing remains functional.

A layer-seven ALB cannot be substituted for a workload whose transport is UDP datagrams. That adjustment does not address the controlling condition: the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions. Verify clients validate the intended certificate and host/path routing remains functional.

Permitted packets can still fail at TLS identity verification before application data is exchanged. That property alone cannot account for the reported symptom; network-layer admission can succeed even when the destination application does not accept connections.

VPC Flow Logs cannot reconstruct full TCP handshake packet order from aggregated records. For the stated conditions, network-layer admission can succeed even when the destination application does not accept connections. The more specific mechanism is a flow-log ACCEPT does not prove a socket listener or end-to-end application response exists.

Load-balancer target timing and application processing can exceed idle or response timeout limits. The decisive technical distinction is a flow-log ACCEPT does not prove a socket listener or end-to-end application response exists; network-layer admission can succeed even when the destination application does not accept connections.

Gateway ownership remains separate; neither account should silently attach the other's resource. The needed control instead targets a customer gateway represents the on-premises VPN endpoint address and routing ASN for a specific device; it succeeds when each branch establishes its assigned VPN tunnels to the correct public endpoint.

Tunnel health alone does not create a routing advertisement for an omitted customer network. The needed control instead targets a customer gateway represents the on-premises VPN endpoint address and routing ASN for a specific device; it succeeds when each branch establishes its assigned VPN tunnels to the correct public endpoint.

A provider-side creation is not the same as AWS customer authorization for a hosted service. That adjustment does not address the controlling condition: reusing an unrelated device address sends IPsec negotiation to the wrong branch router. Verify each branch establishes its assigned VPN tunnels to the correct public endpoint.

A project policy written in documentation does not automatically create log resources. The decisive technical distinction is firewall Manager provides centralized policy coverage and compliance reporting for supported resource types; an organization policy cannot be assumed effective without checking each targeted resource's compliance state.

Per-account local logs are easier to disable or omit during new account onboarding. The decisive technical distinction is firewall Manager provides centralized policy coverage and compliance reporting for supported resource types; an organization policy cannot be assumed effective without checking each targeted resource's compliance state.

Continuous configuration assessment complements packet monitoring by measuring deployed control state. For the stated conditions, an organization policy cannot be assumed effective without checking each targeted resource's compliance state. The more specific mechanism is firewall Manager provides centralized policy coverage and compliance reporting for supported resource types.

Origin request attributes can be controlled separately from which request fields form the cache key. The needed control instead targets global Accelerator endpoint weights influence distribution among endpoints inside an endpoint group; it succeeds when canary traffic increases proportionally within its group without reweighting other regional groups.

Five-tuple flow hashing may send different source ports to different endpoints, unlike source-IP affinity. The needed control instead targets global Accelerator endpoint weights influence distribution among endpoints inside an endpoint group; it succeeds when canary traffic increases proportionally within its group without reweighting other regional groups.

Changing an origin file does not automatically replace copies already cached at edge locations. It does not directly achieve the required result: canary traffic increases proportionally within its group without reweighting other regional groups. The constraint is that endpoint weights divide traffic within a Region's group rather than controlling traffic sent to entire Regions.

The packet is blocked before the HTTP service can evaluate credentials or cookies. The decisive technical distinction is traffic Mirroring has specific source-instance and network interface compatibility requirements; mirroring session configuration alone cannot overcome an unsupported source interface class.

A packet capture and summarized network-flow stream are not interchangeable measurement systems. That property alone cannot account for the reported symptom; mirroring session configuration alone cannot overcome an unsupported source interface class.

The hub's internal route selection can differ from VPC subnet routes and needs separate evaluation. For the stated conditions, mirroring session configuration alone cannot overcome an unsupported source interface class. The more specific mechanism is traffic Mirroring has specific source-instance and network interface compatibility requirements.

Possession of the server private key enables impersonation even when its certificate is public. That property alone cannot account for the reported symptom; a technically signed certificate is not trusted unless the verifier has the appropriate CA chain.

Certificate lifecycle and listener deployment are separate operations. For the stated conditions, a technically signed certificate is not trusted unless the verifier has the appropriate CA chain. The more specific mechanism is private certificates require trust-chain distribution to clients that validate the service.

CloudFront's certificate region requirements differ from those of regional ALB listeners. That property alone cannot account for the reported symptom; a technically signed certificate is not trusted unless the verifier has the appropriate CA chain.

Network-layer admission can succeed even when the destination application does not accept connections. It does not directly achieve the required result: healthy targets are registered and 503 responses associated with missing backends cease. The constraint is that a forwarding action cannot serve application requests when its selected target group is empty or unavailable.

Layer-three/four flow metadata cannot reveal encrypted HTTP resource paths. It does not directly achieve the required result: healthy targets are registered and 503 responses associated with missing backends cease. The constraint is that a forwarding action cannot serve application requests when its selected target group is empty or unavailable.

Permitted packets can still fail at TLS identity verification before application data is exchanged. The needed control instead targets an ALB can return a 503 when its forwarding rule has no available healthy backend targets; it succeeds when healthy targets are registered and 503 responses associated with missing backends cease.

Failback requires explicit routing preference rather than assuming an active link automatically dominates. The reported evidence instead concerns gateway route selection and BGP routing preferences influence preferred hybrid forwarding: multiple healthy links can compete for the same destination; configuration controls the selected route.

Peer connection state does not automatically propagate remote VPC CIDR changes. The reported evidence instead concerns gateway route selection and BGP routing preferences influence preferred hybrid forwarding: multiple healthy links can compete for the same destination; configuration controls the selected route.

Coarse summarization can hide reachability differences and route withdrawals from downstream peers. The reported evidence instead concerns gateway route selection and BGP routing preferences influence preferred hybrid forwarding: multiple healthy links can compete for the same destination; configuration controls the selected route.