I'm wondering if it's possible to downsize a VPC CIDR. For instance, can I change it from 10.30.0.0/16 to 10.30.0.0/20? Would love to hear if anyone else has tackled this problem!
3 Answers
Based on the AWS documentation, you can't change the default CIDR block of an existing VPC. You can only create a new CIDR block and manage new subnets with that. So if you're looking to downsize, you’ll have to start fresh and handle everything from there!
Only option is to create or delete VPCs as needed. No downsizing directly.
Nope, you can’t just resize the existing CIDR block. The easiest approach would be to add a new CIDR block that's smaller and move your resources over to that. What exactly are you trying to achieve with this change?
Related Questions
Can't Load PhpMyadmin On After Server Update
Redirect www to non-www in Apache Conf
How To Check If Your SSL Cert Is SHA 1
Windows TrackPad Gestures