Networking cheatsheet

Yikes, these days I have to deal with a lot of networking challenges. The CIDRs, class-A/B/C subnets/vnets, network security groups, VPN route based/policy based, IKE protocols are terms I need to deal with every day.

I came across this cheatsheet that is espcially handy for CIDR ranges: https://oav.net/mirrors/cidr.html. Very handy!