Table of Contents
A subnet is a range of IP addresses within your network. Instances that you launch can be contained within a subnet in your network.
After setting up a network, you can configure multiple subnets. Then you can launch an instance in any subnet that you have created.
Security groups can be applied to subnets to add an additional layer of security for instances in a network.
When creating a subnet, you have to specify a subnet within the range of the CIDR block of the network or you will receive an error. For example, if your network is 10.0.0.0/16, the range of subnets you create should be between 10.0.0.0/16 - 10.0.255.240/28. If you already have a CIDR block range defined, you cannot create a subnet with a range that overlaps. So if you have a subnet with a CIDR block of 10.0.0.0/16, you will not be able to create a CIDR block of 10.0.3.0/24.
© 2006-2014 RightScale, Inc. All rights reserved.
RightScale is a registered trademark of RightScale, Inc. All other products and services may be trademarks or servicemarks of their respective owners.