it may be network layer or transport layer.. it depends on the design of the firewall.. also depends on the requirement specification..
layer 1, or the physical layer
A firewall generally works at layer 3 and 4 of the OSI model. Layer 3 is the Network Layer where IP works and Layer 4 is the Transport Layer, where TCP and UDP function. Many firewalls today have advanced up the OSI layers and can even understand Layer 7 - the Application Layer.
Data link layer
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)
Application layer.
A web browser is best associated with the application layer of the OSI Model.
layer 3 , network layer .
layer 1, or the physical layer
DHCP runs at the application layer of the OSI model.
A firewall generally works at layer 3 and 4 of the OSI model. Layer 3 is the Network Layer where IP works and Layer 4 is the Transport Layer, where TCP and UDP function. Many firewalls today have advanced up the OSI layers and can even understand Layer 7 - the Application Layer.
Network Layer
A firewall generally works at layer 3 and 4 of the OSI model. Layer 3 is the Network Layer where IP works and Layer 4 is the Transport Layer, where TCP and UDP function. Many firewalls today have advanced up the OSI layers and can even understand Layer 7 - the Application Layer.
Data link layer of the OSI model..
False.
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
Networking layer of the OSI model