![[Featured Image] Two IT employees discuss IPv4.](https://images.ctfassets.net/wp1lcwdav1p1/PtOAxgDdhlGoGm5Q8KSDA/ef49daa87d9c0106df173ad011c15bf5/GettyImages-867431914-converted-from-jpg.webp?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
What Is IPv4 (Internet Protocol Version 4)?
IPv4 is the fourth iteration of the internet protocol. It has been key to enabling internet communication. It uses 32-bit addresses and provides the foundation for routing data packets between networks.
February 26, 2024
Article

![[Featured Image] A network security engineer looking at a monitor in a cable server room and programming configurations.](https://images.ctfassets.net/wp1lcwdav1p1/2Uoz2sDmFFMlbpVyPuXkUY/680b0ec3d2f6c1c8c7b9752a72a6b64f/GettyImages-530481916.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured Image] A cloud security engineer sitting at a desk with several computer monitors in their office, wearing a headset and working intently at their job.](https://images.ctfassets.net/wp1lcwdav1p1/3pisXHYQzV4OPMMOp6pOAq/1d00718163a196a6d66058719f409b1d/GettyImages-1442972530-converted-from-jpg.webp?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)


![[Featured Image] An IT support specialist talking into a headset while sitting at a computer explaining troubleshooting options to a caller.](https://images.ctfassets.net/wp1lcwdav1p1/1C46phKQu9ia4Nd91N7FZq/56f79539038f4efbc03e2a9b09951abc/GettyImages-996779948.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)

![[Featured Image] A networker is at a server holding a laptop working on their presentation layer found within the OSI model.](https://images.ctfassets.net/wp1lcwdav1p1/6RHWcnaYxbSoGZ6s0OZO7j/280a6fc6192ac9e26d03f91a6a03469e/GettyImages-950507150-converted-from-jpg.webp?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image]: A network security professional in an office uses promiscuous mode to troubleshoot a computer.]](https://images.ctfassets.net/wp1lcwdav1p1/15VtwP6glQCOgthDMN00PI/5764f74beec777f9ff650c58da57c869/GettyImages-513368439.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image] IT team applying unified threat management (UTM) on their computer systems.](https://images.ctfassets.net/wp1lcwdav1p1/2YPhb9CGTFCxeP2f6tY9Ak/436af952171731a92acd702cd3ca0e96/GettyImages-1270220777__1_.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image] An IT support professional wearing glasses works on their laptop in a server room.](https://images.ctfassets.net/wp1lcwdav1p1/1wg3MjkIt5BcMrIcdJ72BE/150551feb787afc2b0c7b6b60bb1d657/GettyImages-1347879996.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image] A security engineer is doing maintenance on his company's physical server machines.](https://images.ctfassets.net/wp1lcwdav1p1/jHGnENzUQH9oubWDOmRlg/99ecd4df64dbf072269f850986002f8b/iStock-950514452.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image] Three security engineers examining data security protocols on a computer monitor inside a server room.](https://images.ctfassets.net/wp1lcwdav1p1/6ml4UooJ7Fy0SedX8v5xeF/013af69d3853c120d2cd4244fd20999e/GettyImages-672157207-converted-from-jpg.webp?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
![[Featured image] A woman sits on a sofa with a laptop working as a cybersecurity analyst.](https://images.ctfassets.net/wp1lcwdav1p1/2XwMCYZ84VAs2vaVvDBvtY/0f8887fe64e0499c65e1eb4cf6d8ae3e/GettyImages-1658808832.jpg?w=330&h=216&q=60&fit=fill&f=faces&fm=jpg&fl=progressive)
