It will protect your computer from Malicious programs,hackers .since it will keep an eye on each packet that is moving through the network.It will check the header of the packet,if it is reliable it allow the packet to pass. with love swaroop
Stateful inspection works at Network Layer . Many Thanks, Chinmoy Roy
Yes it offers the staeful inspection.
Stateful packet inspection
Stateful Inspection. A stateful inspection firewall uses a technique known as stateful packet filtering to keep track of communication channels. This is different when compared to basic firewalls. Once the packet and connection has been sent, a normal firewall will not remember the communication channel, whereas the stateful inspection firewall will. This also proves useful to protect connectionless communication protocols.
dynamic state tables
logs stateful inspection
Firewalls perform a simple form of "stateful inspection" of the packets that flow through them.
Stateful packet inspection
Access is permitted only if it is a legitimate response to a request from an internal host.
The method you are referring to is called SPI - Stateful Packet Inspection. A firewall employing SPI is commonly called a stateful firewall.
It permits incoming packets that are legitimate responses to requests from internal hosts.
A network hub absconds with any stateful packet inspection (SPI), so it won't act as a firewall.