COMPUTER NETWORKING

Detailed explanation-1: -Static Packet Filter This type of firewall decides whether to accept or deny individual packets, based on examining fields in the packet’s IP and protocol headers.

Detailed explanation-2: -A packet filtering firewall is a network security technique that regulates data flow to and from a network. It is a security mechanism that allows packets to move across networks while controlling their flow through the use of a set of rules, protocols, IP addresses, and ports.

Detailed explanation-3: -IP filtering lets you control what IP traffic will be allowed into and out of your network. Basically, it protects your network by filtering packets according to the rules that you define. NAT, allows you to hide your unregistered private IP addresses behind a set of registered IP addresses.

Detailed explanation-4: -Packet-filtering firewalls work on Layer 3. They are considered to be first-generation firewalls. These firewalls check a packet’s source and destination address, protocol, and destination ports. They can protect against packets coming from certain IP addresses.