Page History

...

Paths and Traffic Filtering

	Resource	Filtering	Notes
Source	TGW	—
↓	TGW Attachment	—
↓	TGW Attachment Elastic Network Interface	—
↓	NACL of Subnet attached to TGW	outbound rules of NACL attached to utility subnet	The NACL bound to the utility subnets allow all traffic in and out.
↓	Route Table of Subnet attached to TGW	—
↓	NACL of Subnet containing EC2 instance	inbound rules of NACL for destination subnet
↓	EC2 Instance Security Group	inbound rules of SG
Destination	EC2 Instance Elastic Network Interface	—

	Resource	Filtering	Notes
Source	EC2 Instance Elastic Network Interface	—
↓	EC2 Instance Security Group	outbound rules of SG
↓	NACL of Subnet containing EC2 instance	outbound rules of NACL for source subnet
↓	Route Table of Subnet containing EC2 instance	—
↓	NACL of Subnet attached to TGW	inbound rules of NACL attached to utility subnet	The NACL bound to the utility subnets allow all traffic in and out.
↓	TGW Attachment Elastic Network Interface	—
↓	TGW Attachment	—
Destination	TGW	—

...