All layers - but to the greatest extent, the distinctive work done by the router - specifically, routing packets - corresponds to layer 3.
Layer 2
Data link layer
Routers works in the network layer of the OSI model and choose the best ,shortest and optimized path to route the packets received from data link layer and requested by transport layer. BY Naghma
Hubs and repeaters operate at the Physical Layer of the OSI Model. The Physical Layer is the first layer of the OSI Model.
i believe (not quite sure) that it is at the application layer (layer 1)
Router works in Network Layer of OSI model
Layer 2
three
Assuming you are using the OSI Modem a router sits on Layer 3: Network
UDP or User Datagram Protocol works on the Transport Layer (layer 4) in the OSI model.
Network Layer - Does path determination and logical addressing.
Interfaces used on the system to connect to Network devices reside on Physical layer.
Router is a Layer 3 (Network Layer)device that checks packet's IP Address at input interface & routes them to interface connected to destination network if available.
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
IPsec operates at the network layer of the OSI model, specifically Layer 3. It provides security for IP packets by offering features like authentication, integrity, and confidentiality. By functioning at this layer, IPsec can protect all traffic traversing an IP network, regardless of the application layer protocols in use.
The application layer in the OSI model is not fixed. It is where user interface and application functionality reside, and can vary depending on the specific needs and requirements of the application being developed.
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