The picture below illustrates a command and control session. He tunnels his C&C traffic inside the network as a legitimate connection, secured with the SSL protocol, for example. Consequently, the attacker sets up a tunnel in a session that the firewall still interprets as valid. It means nothing else but clicking on a link leading to the attacker’s computer, where a command and control reverse session is set up. In turn, an example of bypassing the stateful logic would be an attack based on forcing a system within the network or an end-user to run a seemingly valid connection from the internal network to an untrusted segment, like the Internet. As a result, it will allocate the maximum amount of available resources, which will render valid user and system traffic impossible. A device that is not protected against a situation like this will interpret the connection as legitimate. The TCP Syn Flood attack is based on attackers running multiple parallel TCP session attempts that are not concluded with the so-called proper TCP Handshake. Cisco SD-WAN implementation in a sugar production company.When a firewall executes packet filtering, it examines the packets of data, comparing it against filters, which consist of information used to identify malicious data. They include the following: Packet Filtering Data is organized in packets. Cisco Meraki - safe WLAN in high-bay warehouse Firewalls use different methods to protect your network or computer.Fortigate 200F configuration optimization with Elasticstack.

Firewall & network protection