TGW ingress is evaluated against the associated TGW route table; a VPC route alone cannot resolve the second-hop destination; this belongs to TGW route-table entry for an attached destination, while the problem is inline inspection insertion through a GWLB endpoint.

A gateway endpoint supplies a route-table target for S3 prefix ranges; another service's endpoint cannot provide that path; this changes S3 access through endpoint-associated subnet routes, not the necessary inline inspection insertion through a GWLB endpoint.

In the explicitly supported PrivateLink regional reach workflow, interface endpoint availability is governed by service type and enabled Region settings; a local endpoint service is not automatically consumable everywhere; the current case needs inline inspection insertion through a GWLB endpoint.

RAM subnet sharing allows other accounts to create supported workload resources in owner-managed networks; that addresses resource-level subnet consumption by other AWS accounts, rather than cross-account separation of network and workload control.

TGW attachment acceptance controls whether shared consumers become connected before the owner explicitly authorizes them; this belongs to manual authorization of cross-account attachments, while the problem is cross-account separation of network and workload control.

Resource sharing grants use of the TGW but does not itself connect workload VPCs to the network dataplane; this changes materialized cross-account TGW attachment, not the necessary cross-account separation of network and workload control.

The TGW examines only the ingress attachment's associated table when forwarding; propagation into an unrelated table changes no dev path; that addresses association-dependent TGW lookup, rather than correct routing domain for inbound VPN traffic.

TGW ingress is evaluated against the associated TGW route table; a VPC route alone cannot resolve the second-hop destination; this changes TGW route-table entry for an attached destination, not the necessary correct routing domain for inbound VPN traffic.

This produces bidirectional subnet routing for VPC peers: Creating a peer relationship does not install the application subnet routes needed for each direction of private IP transit; the stem instead tests correct routing domain for inbound VPN traffic.

A gateway endpoint supplies a route-table target for S3 prefix ranges; another service's endpoint cannot provide that path; that addresses S3 access through endpoint-associated subnet routes, rather than explicitly supported PrivateLink regional reach.

Private DNS changes name resolution inside associated VPCs so eligible service names resolve to locally addressable endpoint interfaces; this belongs to private resolution of a service consumed through PrivateLink, while the problem is explicitly supported PrivateLink regional reach.

Provider-side authorization controls which principals may request PrivateLink connections before acceptance and networking permissions apply; this changes whitelisting consumers of a private endpoint service, not the necessary explicitly supported PrivateLink regional reach.

In the zonal private ENIs used to reach an endpoint service workflow, interface endpoints allocate managed ENIs in chosen subnets and accept connections according to their attached security groups; the current case needs explicitly supported PrivateLink regional reach.

This produces provider resource for service-specific PrivateLink connectivity: Interface endpoint consumers connect to a provider endpoint service rather than directly referencing arbitrary cross-account NLB DNS names; the stem instead tests explicitly supported PrivateLink regional reach.

Interface endpoint availability is governed by service type and enabled Region settings; a local endpoint service is not automatically consumable everywhere; this belongs to explicitly supported PrivateLink regional reach, while the problem is both route-plane and ENI-level permission to communicate.

AWS transit forwarding is bidirectional only when each direction has an effective path; security-group statefulness cannot fabricate missing reverse routes; this changes symmetrical forward and return connectivity through transit, not the necessary both route-plane and ENI-level permission to communicate.

In the correct routing domain for inbound VPN traffic workflow, TGW association determines lookup behavior for packets arriving from the VPN; using the wrong table can expose or suppress destinations; the current case needs both route-plane and ENI-level permission to communicate.

Creating a peer relationship does not install the application subnet routes needed for each direction of private IP transit; that addresses bidirectional subnet routing for VPC peers, rather than additional VPC address capacity through secondary CIDR association.

NAT gateways translate private IPv4 flows and use reachable egress networking without assigning public IPs to each workload; this belongs to centralized translation for private IPv4 Internet egress, while the problem is additional VPC address capacity through secondary CIDR association.

VPC sharing separates network administration from participant workload management without duplicating the underlying subnets; this changes cross-account separation of network and workload control, not the necessary additional VPC address capacity through secondary CIDR association.

Transit routing follows longest-prefix match before broad-prefix alternatives, allowing a narrow service segment to take an explicit next hop; that addresses specific prefix overrides aggregate traffic steering, rather than outbound-only IPv6 internet connectivity.

A gateway endpoint supplies a route-table target for S3 prefix ranges; another service's endpoint cannot provide that path; this belongs to S3 access through endpoint-associated subnet routes, while the problem is outbound-only IPv6 internet connectivity.

NAT gateways translate private IPv4 flows and use reachable egress networking without assigning public IPs to each workload; this changes centralized translation for private IPv4 Internet egress, not the necessary outbound-only IPv6 internet connectivity.

A gateway endpoint supplies a route-table target for S3 prefix ranges; another service's endpoint cannot provide that path; that addresses S3 access through endpoint-associated subnet routes, rather than centralized translation for private IPv4 Internet egress.

A secondary VPC CIDR expands addresses from which new subnets may be carved without changing the original block; this changes additional VPC address capacity through secondary CIDR association, not the necessary centralized translation for private IPv4 Internet egress.

In the outbound-only IPv6 internet connectivity workflow, egress-only IGW supports outbound-initiated IPv6 traffic and blocks new unsolicited inbound sessions at the gateway layer; the current case needs centralized translation for private IPv4 Internet egress.

Private DNS changes name resolution inside associated VPCs so eligible service names resolve to locally addressable endpoint interfaces; that addresses private resolution of a service consumed through PrivateLink, rather than zonal private ENIs used to reach an endpoint service.

A gateway endpoint supplies a route-table target for S3 prefix ranges; another service's endpoint cannot provide that path; this belongs to S3 access through endpoint-associated subnet routes, while the problem is zonal private ENIs used to reach an endpoint service.

Interface endpoint availability is governed by service type and enabled Region settings; a local endpoint service is not automatically consumable everywhere; this changes explicitly supported PrivateLink regional reach, not the necessary zonal private ENIs used to reach an endpoint service.

Interface endpoint availability is governed by service type and enabled Region settings; a local endpoint service is not automatically consumable everywhere; that addresses explicitly supported PrivateLink regional reach, rather than understanding protection boundary of inter-Region peering.

Creating a peer relationship does not install the application subnet routes needed for each direction of private IP transit; this changes bidirectional subnet routing for VPC peers, not the necessary understanding protection boundary of inter-Region peering.

In the explicit inter-Region TGW route creation workflow, TGW peering does not propagate CIDRs dynamically, and the ingress attachment's table needs a static route to the peer; the current case needs understanding protection boundary of inter-Region peering.

This produces supportable three-VPC routing topology: VPC peering is nontransitive; the intermediate peer cannot act as a managed forwarding router to another peer; the stem instead tests understanding protection boundary of inter-Region peering.

TGW ingress is evaluated against the associated TGW route table; a VPC route alone cannot resolve the second-hop destination; that addresses TGW route-table entry for an attached destination, rather than specific prefix overrides aggregate traffic steering.

A TGW blackhole route discards packets that match its destination rather than forwarding them to any attachment; this belongs to deliberate drop action within transit routing, while the problem is specific prefix overrides aggregate traffic steering.

In the correct routing domain for inbound VPN traffic workflow, TGW association determines lookup behavior for packets arriving from the VPN; using the wrong table can expose or suppress destinations; the current case needs specific prefix overrides aggregate traffic steering.