I have been teaching IP subnetting for quite a while and found that there seems to be a need to continue practicing the process of subnetting.  I have started to develop questions for people to do just that.  This is a set of exercises to help in the understanding of subnetting IP networks and some derivatives, Variable Length Subnet Mask (VLSM) and summarization (subnets and/or aggregation also known as CIDR).

 

IP Subnetting

VLSM Scenarios

Summarization/Aggregation