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"Allowed to" prefixes in the case of VPGW and Direct Connect GW

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We know we can specify "allowed to" prefixes when associating TGW or VPGW to a DxGW.

Is there any restriction (such as VPGW only allowed to advertise the VPC CIDR to which it's attached) on a VPGW attached to a VPC, connected to a private VIF over a direct connect?

Nothing is there in the documentation about VPGW's behavior in this case.

Topics
Networking & Content Delivery
Tags
AWS Direct Connect
Language
English
asked a year ago219 views
1 Answer
2
Accepted Answer

There are no limitations of the kind you mean on the CIDRs you configure to be advertised by a VGW via a DXGW. It's implied also in this documentation article, which describes a sample case where the VPC has the CIDR 10.0.0.0/16 but the VGW is advertising a broader range, 10.0.0.0/15, via the DXGW: https://docs.aws.amazon.com/directconnect/latest/UserGuide/allowed-to-prefixes.html

EXPERT
answered a year ago
EXPERT
reviewed a year ago

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