Routes to ENI in VPC rt do not propagate to attached TGW rt

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I have a VPC attached to a TGW in same account. I've added a couple of entries to the VPCs route table with an ENI (or instance) as target. I expected those new routes to propagate to attached TGW's route table automatically but they don't.

Should the routes in VPC's RT propagate automatically o do I need to add appropriate entries in TGW's RT targeting the TGW-VPC attachment? What could I be doing wrong?

Carlos
질문됨 7달 전252회 조회
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TGW route tables and VCP route tables are two separate route tables and you won't be able to propagate the VPC route table into the TGW route table, when you propagate a VPC attachment then you ONLY propagating the VPC CIDR into the TGW route table. Use static routes to add a specific route into TGW route table.

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Matt_E
답변함 7달 전
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전문가
검토됨 2달 전
  • I see, so I think don't understand propagations. Thanks for your help.

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