Question 19937 in Amazon Web Sevices Question posted in
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How to identify public and private subnet in AWS?

I have joined project. Subnets are not properly named. So how to identify public and private subnet in vpc?

How can route table help me? Can someone please check?

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Answers


  1. 0

    Public subnets are those that have a route to the internet gateway. Private ones are those which don’t have such a route.

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  2. 0

    To identify whether a subnet is a Public Subnet:

    • In the VPC management console, click on the subnet
    • Click on the Route table tab

    If there is an entry with a Destination of 0.0.0.0/0 that points to igw-xxxx, then it is sending traffic for the internet through an Internet Gateway. This makes it a Public Subnet.

    For example:

    VPC Subnet Route Table

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