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A packet filter is a mechanism used to provide a level of digital security by controlling the flow of information (data packets) via the examination of key information in packet headers. A packet filter determines if these packets are allowed to go through a given point based on certain access control policies.
A dynamic packet filter (DPF) builds on the concepts of a normal packet filter but with increased intelligence. Traditional packet filters are often slower and more difficult to manage in larger networks with complex security policies
A stateful packet filter (SPF), quite simply, manages and maintains the connection state of a session through the filter to ensure that only authorized packets of a policy are permitted in sequence.
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∙ 15y ago
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What the simplest method of filtering traffic?
"A static packet filtering firewall is the simplest method of filtering traffic."
Is packet filtering the function of router?
Nopes, definitely no. I would rather say that "Packet Filtering" is the primary job of a Firewall.
What is diffirence between static and dynamic friewall?
Static vs Dynamic Filtering -- Static (constant and unchanging) packet filtering offers security against novice hackers. You can configure the filtering rules when you install a firewall to filter based on source/destination IP addresses. This sets up a static filter. But static packet filtering does not have the intelligence to selectively open and close ports; it can either open all the non-private ports or close them all. If all ports are kept open, an intruder can break in; if all ports are closed, the firewall becomes obtrusive to the users on the network. (To see why ports are opened, see the section on FTP Security, below.) Dynamic filter
How do you avoid WLAN attack using traffic filtering on a WLAN?
Filtering is the process of analyzing the contents of a packet to determine if the packet should be allowed or blocked.
What is stateless packet filtering?
A firewall that examines an incoming packet and takes action based strictly on the rule base
What type of Packet filtering keeps a record of the state of a connection between an internal computer and an external server and then makes decisions based on the connection as well as the rule base?
stateful packet filtering
Firewall is a router that examines the header of every packet of data it receives to determine whether that type of packet is authorized to continue to its destination?
packet-filtering
Why is packet filtering by itself inadequate for security purposes?
gand marava
What is deep packet filtering?
Deep packet filtering first examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions or predefined criteria to decide if the packet can pass or if it needs to be routed to a different destination, or for the purpose of collecting statistical information. This differs from "stateful packet inspection" (shallow filtering) where only the type of traffic and possibly the source and destination are inspected, not the contents of the traffic.
Why does a packet filtering firewall maintain the state of connections?
Do your homework for kaplan IT484.
What are elements of a screen host firewall?
packet filtering router bastion host
What type of firewall is a router that examines the header of every packet of data it receives to determine whether that type?
a packet filtering fire wall
