1. OSI Model Explained with Wireshark
Datalink Layer:
If an OSI layer 2 packet is captured you will see MAC addresses in the source and destination
columns.
Network Layer:

2. If an OSI layer 3 or upper packet is captured you will see IP addresses in the source and destination
columns.
Transport Layer:
If an OSI layer 4 captures you will the port details
Application Layer:
This layer shows which application is used and here HTTP is captured in Layer 7