To attach an internet gateway to your VPC
The following attach-internet-gateway example attaches the specified internet gateway to the specific VPC.
aws ec2 attach-internet-gateway \
--internet-gateway-id igw-0d0fb496b3EXAMPLE \
--vpc-id vpc-0a60eb65b4EXAMPLE
This command produces no output.
For more information, see Internet gateways in the Amazon VPC User Guide.