> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/glossary/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/glossary/i/ipv4.md).

# IPv4

IPv4 stands for Internet Protocol version 4. It is a protocol used to identify devices on a network and route Internet Protocol (IP) packets between them.

IPv4 uses 32-bit addresses, which are expressed in four groups of numbers separated by dots, for example, 192.168.0.1. Each group represents 8 bits, allowing for a total of 2^32 or approximately 4.3 billion unique IP addresses.