Editing Stateful firewall (section)

{{short description|Connection tracking network security system}}

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In computing, a '''stateful firewall''' is a [[Firewall (computing)|network-based firewall]] that individually tracks sessions of network connections traversing it. '''Stateful packet inspection''', also referred to as dynamic packet filtering,<ref>{{cite book|last=Goralski|first=Walter|url=http://worldcat.org/oclc/986540207|title=The illustrated network: How TCP/IP works in a modern network|date=12 May 2017|publisher=Elsevier Science |isbn=978-0-12-811027-0|oclc=986540207}}</ref> is a security feature often used in non-commercial and business networks.