Networking - Explain Circuit Level Gateway.

Explain Circuit Level Gateway.

- A circuit level gateway is used to find if a session in TCP handshaking is legitimate or not.

- It can be considered as a layer between application layer and transport layer.

- They protect the information of the private network they protect.

- Circuit level gateways do not filter packets.

- It is a circuit level gateway that is a firewall which provides the User Datagram Protocol and Transmission Control Protocol and works between the OSI network model transport and application layer such as the session layer.

- The circuit level gateways monitor the TCP data packet handshaking and session fulfillment of the firewall rules and policies.

- It is a virtual circuit between the proxy server and the internal client.
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