stateful firewall

[knaik99]

as per my understanding ---stateful firewall means the device who keeps track record of flow from source to destination.

and such firewall allow reverse flow i.e. destination to source if it is in its record so please explain in simple about this working of stateful firewall

[Enes Simnica]

@knaik99 U got it right, a stateful firewall keeps a session table of active connections. Once it sees traffic from source to destination, it remembers it, so the return traffic is automatically allowed back in. Which means that anything not part of a known session gets dropped..... 

check this and hope it helpSSS: https://learningnetwork.cisco.com/s/question/0D53i00000Ksup8CAB/stateful-firewall-overview

-Enes