![]() ![]() While a stateful firewall can remember information about previous data packets that passed through and will consider that when looking at new data packets. ![]() A stateless firewall will look at each data packet individually and won’t look at the context, making them easier for hackers to bypass. Packet-filtering firewalls can come in two forms: stateful and stateless. If the information in the data packet satisfies a certain rule then it is allowed to pass through otherwise it is blocked and discarded. These rules can be based on IP addresses, packet type, destination port number or any other aspect found in a data packet header. Packet filtering firewalls filter data by comparing the header information of a data packet to a set of predefined rules. ![]()
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