>[!tldr] Internet Protocol Stack (IPS) 4 layers >The IPS stack is a model of how communication should work over the internet. It is structured into 4 different layer: >1. Application layer >2. Transport Layer >3. Internet Layer >4. Network access Layer > >It is based of the [[Open Systems interconnection (OSI) model|OSI model]] and compares as follows. >![[model-comparison.png]]