IPng stands for Internet Protocol next generation, which is the name originally given to what is now known as IPv6. IPv4 came first, and IPng/IPv6 was designed to replace it.
Background:
In the early 1990s, the Internet Engineering Task Force (IETF) realized that the existing IPv4 protocol would eventually run out of address space due to the rapid growth of the internet. A working group was formed to design a replacement. This new protocol was temporarily referred to as IPng, meaning the “next generation” of IP.
Key Features of IPng (IPv6)
- Larger Address Space: Uses 128-bit addresses (compared to 32-bit in IPv4), allowing for an enormous number of unique IP addresses.
- Simplified Header Format: Designed to improve efficiency in routing and forwarding.
- Built-in Security: Includes support for IPsec (encryption and authentication) as a standard feature.
- Better Support for Mobility and Multicast: Improves how devices move between networks and how one-to-many communications are handled.
- No Need for NAT: The expanded address space reduces reliance on Network Address Translation.
In short, IPng = IPv6, the successor to IPv4.
