By Sascha Neumeier • Feb 21, 2018

How to Cut Through The IPv4 Subnet Mask Jungle

Although IPv6 has been in regular operation for almost 20 years, its saturation within corporate networks is still relatively low. Switching from IPv4 to IPv6 is a long-standing process that requires good planning and involves parallel operation of the two protocols.

Even if there is no way around IPv6 for administrators, the official predecessor IPv4 will still be in the networks for many years. That’s why you should have a closer look at the hurdles of IPv4.

255.255.224.0

Daily work with IPv4 and its subnets can be a real struggle. Do you know how many addresses are available in the 255.255.224.0 subnet? Me neither! Converting .255 or .224 in binary is easier, but (usually) also not the daily business of an IT admin.

No more questions - Get your IPv4 Cheat Sheet now!

The day-to-day questions about IPv4 are answered in our IPv4 Cheat Sheet.

  • Which subnet mask provides how many IP addresses?
  • Conversion of subnet mask values to CIDR
  • Decimal to binary conversion and vice versa
  • The different IP address classes
  • Overview of reserved IP ranges
  • IP address parts that are available for examination

Just hit the button below and get your IPv4 Cheat Sheet today!

You want to level up and dive into IPv6 networking? Should we elaborate more on the IPv6 Cheat Sheet? Leave us your comments!