Stateful firewall

In computing, a stateful firewall is a network-based firewall that individually tracks sessions of network connections traversing it. Stateful packet inspection, also referred to as dynamic packet filtering,^[1] is a security feature often used in non-commercial and business networks.

^ Goralski, Walter (12 May 2017). The illustrated network: How TCP/IP works in a modern network. Elsevier Science. ISBN 978-0-12-811027-0. OCLC 986540207.

[1] Goralski, Walter (12 May 2017). The illustrated network: How TCP/IP works in a modern network. Elsevier Science. ISBN 978-0-12-811027-0. OCLC 986540207.

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