![]() If something suspicious is detected, the data can be discarded before it infects the receiving device. ![]() At Layer 7, FortiGate can detect suspicious activity within the application and act accordingly.įortiGate can identify the source, position, and content of the data, comparing it against a constantly evolving collection of threat signatures. FortiGate also interacts with Layer 7 in that it has the ability to inspect the behavior of an application, including how it uses its data resources. In this way, FortiGate prevents one device from being used to infect another. As data is transmitted from one network to the other, FortiGate performs in-depth packet inspection, checking whether the connection is being used to send cyber threats.Īt Layer 4, FortiGate is positioned between two devices, inspecting each data segment before it reaches the receiving device. At Layer 3, FortiGate sits between two interconnected networks. Layers 4 and 7 are optimal locations for intercepting data and inspecting its contents, as is Layer 7 if the activities of an application are of interest.įortiGate firewalls performs functions at Layers 3 (network), 4 (transport), and 7 (application. ![]() They can also detect abnormal activity, which may signal a potential threat. However, some are also capable of working as high as the application layer, Layer 7.Ī firewall performs the task of inspecting network activity, looking for cyber threats by comparing data against an extensive catalog of known threats. TCP, UDP, and IP are protocols that facilitate how data is sent and received.įirewalls typically work on the network layer, the transport layer. Internet Protocol (IP) addresses operate at Layer 3, the network layer. Layer 4 is where Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) port numbers work. If it is not, this layer will request a retransmission. To control errors, the transport layer checks to see if the data transmitted was done so completely. ![]() To manage data flow, the transport layer makes sure it is not being sent so quickly that the receiver’s device cannot handle it. The transport layer on the device receiving the communication handles the reassembly of the segments into data that is consumable by the session layer.Īlso, the transport layer takes care of managing the flow and any necessary error messages that need to be sent in the event something goes wrong. The management of the communication involves taking the data in the session layer and dividing it into pieces referred to as segments. With built-in controllers, single-pane-of-glass. To be efficient, it needs to consolidate wired and wireless management and visibility. The transport layer handles end-to-end communication between the devices interacting with each other. To be effective against today’s evolving threat landscape, your security solution needs to reliably control network traffic through awareness of applications, users, and content. ![]()
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