IPAM or Internet Protocol Address Management is a way that you can plan, track, and manage the Internet Protocol address space used in a network. Your Internet Protocol, or IP, is the principal communications protocol or rules in the internet protocol suite. This suite of communications protocols is commonly referred to as TCP/IP. IPAM also integrates the domain name system or DNS and the dynamic host configuration protocol or DHCP so that each protocol is aware of changes in the other.
Current IP Version
Internet Protocol version 4 or Ipv4 is still the most used Internet Protocol version today. It still routes the majority of the internet traffic today. IPv4 is also a connectionless protocol used in packet-switched networks. The downside is that does not guarantee packet delivery nor does it assure proper sequencing or does it avoid duplicate delivery. The current protocol under development and deployment is IPv6
Newest IP Version
Ipv6 is the newest Internet Protocol version upgrade. It will provide an identification and location system for computers that reside on a network and route traffic across the Internet. IPv6 was developed in part to deal with the long-anticipated problems of IPv4 address depletion.
Why Do We Need IPv6
Every device on the Internet is assigned an IP address for identification and location definition. The IP address space is currently managed by the Internet Assigned Numbers Authority globally and also by five regional Internet Registries that are responsible for assignment to end users and local Internet Registries. With the explosive growth of the Internet, after its commercialization, it became clear that far more addresses than those available through IPv4 were going to be necessary to connect new devices in the future. By 1998 the Internet Engineering Task Force had formalized a successor protocol, IPv6. One of the huge changes to the protocol is that IPv6 uses a 128-bit address system. This theoretically allows the number of addresses available to be 2 times 10 to the 128th power. That translates to the number 10 with 128 zeros behind it times 2. This is a number beyond human comprehension. There are approximately only 10 to the 80th atoms in the entire visible universe. As a consequence of this, I believe they have gotten their IP address problem solved.