Who is responsible for ip in osi model?

In the OSI model, the internet Protocol (IP) operates primarily at the Network layer, which is the third layer. This layer is responsible for routing packets of data across different networks and ensuring they reach their destination. The Network layer handles logical addressing, which is where IP addresses come into play, facilitating communication between devices on different networks. Additionally, protocols such as ICMP (Internet Control Message Protocol) also function at this layer to manage error handling and diagnostics.