Cloud·299 discussions

AWS Availability Zone Subnetting

Tags: Cloud, Networking

Hello All,

I’m new to cloud computing with Amazon and using Terraform to create my environment. I am trying to create two availability zones, each one with its own subnet. I am using an IP address of 10.0.0.0/16, which means that I should logically be able to use subnets with the following addresses:

10.0.3.0/24
10.0.4.0/24
10.0.5.0/24
10.0.6.0/24
10.0.7.0/24

However, when I do this I get errors when I run terraform apply. What am I doing wrong? Thanks for any assistance.

Topic

There’s a basic issue here with your choice of IP.

In reply to AWS Availability Zone Subnetting

Read https://www.arin.net/reference/research/statistics/address_filters/

Those addresses would never be accessible from the Internet.

Maybe you could do this on a LAN but not the Internet.

Reply To: AWS Availability Zone Subnetting

In reply to There’s a basic issue here with your choice of IP.

Thanks for your assistance. I just wanted to as a brief question. I took a look at Amazon’s website, and even IP addresses that are supposed to be public give me the same error messages. Is there a list of available IP addresses for public use? Also, is there a way for terraform to look for any availability zones that are open and just use those for AWS? Sorry for all the questions, but I am new to Terraform.

Try Reddit?

In reply to Reply To: AWS Availability Zone Subnetting

See https://www.reddit.com/r/Terraform/

Here I can only point out what I see as issues. You need a bigger support base than what I can give you.

[Author]

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