title: How can we get a VPC's default route table ID using Get::Attr in AWS CloudFormation?
body: <p>I have created a VPC using CloudFormation template, along with the VPC a default route table and NACL are created automatically.</p>
  
  <p>Now I want to add some routes to the default route table that is created with VPC in the same CloudFormation template. Is there any way to get the VPC's default route table ID in the same CloudFormation template?</p>
  
  <p>One possible way could be using Get::Attr, but I can't find any attribute like defaultroutetable with Get::Attr.</p>