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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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