A software routine that analyzes incoming data packets and forwards them or discards them based on one or more criteria such as address, range of addresses and type (e-mail, file transfer, etc.). Packet filtering is generally performed in a router, in which case the router is known as a "screening router." See deep packet inspection, firewall, Web filtering and router.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Cocoa Packet Analyzer 0.66 (Mac)
- Cocoa Packet Analyzer is a native Mac OS X implementation of a network protocol analyzer and packet sniffer. CPA supports the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files. Features: Basic packet capturing (libPCAP/ tcpdump filter expressions can be used). Analyze and display...
- Software downloads 2009-11-20
- CommView 6.1 Build 636 (Windows)
- CommView is a network monitor and analyzer designed for LAN administrators, security professionals, network programmers, home users virtually anyone who wants a full picture of the traffic flowing through a PC or LAN segment. Loaded with many user-friendly features, CommView combines performance and flexibility with an ease of use unmatched...
- Software downloads 2009-10-15
- TechGuard keeps spam and botnets at bay with one-click, enterprise-level security for SMBs, SOHOs
- One of the most difficult things for a small or medium business to do is set up a security scheme that's effective, affordable and intelligible to the average employee. Chesterfield, Mo. and Baltimore, Md.-based TechGuard is attempting to address that problem by bringing its enterprise and government-level...
- Blog posts 2009-10-13
- PacketViewer 1.3.3557 (Windows)
- Easy program to sniff and view IP packets (TCP, UDP, ICMP). PacketViewer allows you to view IP packet messages and IP packet informations in real time. You can easily listen on Windows system ports (Eg. Ports 135, 445, 1026-1028). An IP Converter tool allows you to convert IP Addresses to...
- Software downloads 2009-09-30
- iBoss Home Parental Control Wireless-N router
- Priced at an affordable $40, the iBoss Home Parental Control Wireless-N is, however, not an affordable choice, thanks to its $59 annual cost that accrues after the first month of use. Over time, this fee could make it one of the most expensive Wireless-N routers on the market; and the...
- Product reviews 2009-06-05
- LayerView 1.04.1003 (Windows)
- LayerView is a lightweight, robust, flexible packet sniffer which allows you to take control of your network. It reconstructs entire TCP/UDP conversations for browsing. It supports a wide range of protocols, with more being added every day. It offers full filtering support, allowing you to search through and filter data...
- Software downloads 2009-06-04
- An Interval Decision Diagram Based Firewall
- This paper explores the use of Interval Decision Diagrams IDDs as the central structure of a firewall packet filtering mechanism. This is done by first relating the packet filtering problem to predicate logic, then implementing a prototype which is used in an empirical evaluation. The main benefits of the IDD...
- White papers 2009-01-15
- An MTIDD Based Firewall: Using Decision Diagrams for Packet Filtering
- This paper explores the use of Multi-Terminal Interval Decision Diagrams MTIDDs as the central structure of a firewall packet filtering mechanism. This is done by first relating the packet filtering problem to predicate logic, then implementing a prototype which is used in an empirical evaluation. The main benefits of the...
- White papers 2009-01-06
- cFos 7.53 Build3088 (Windows)
- COM Port Emulator:cFos allows application for serial ports to be used with ISDN and DSL. Dialer Protection: Protect yourself against expensive dialers! cFos can block certain prefixes or warn you when they are being dialed. More info here! Firewall: A small firewall packet filter as a first defense against simple...
- Software downloads 2009-01-06
- SIFF: A Stateless Internet Flow Filter to Mitigate DDoS Flooding Attacks
- One of the fundamental limitations of the Internet is the inability of a packet flow recipient to halt disruptive flows before they consume the recipient's network link resources. Critical infrastructures and businesses alike are vulnerable to DoS attacks or flash-crowds that can incapacitate their networks with traffic floods. Unfortunately, current...
- White papers 2009-01-01
- Unipeek MSN Monitor 2.0 build 321 (Windows)
- Unipeek MSN Monitor MSN sniffer is a free MSN monitoring tool designed for MSN chat monitoring and MSN message archiving. Based on Colasoft's packet analysis technology, Unipeek MSN Monitor is able to deliver the most accurate MSN monitoring statistics, and automatically record data for future reference. You need only install...
- Software downloads 2008-12-17
- Network Troubleshooting Analyzer CAPSA 6.9 (Windows)
- Packet Analyzer CAPSA pro edition is an advanced packet analysis and sniffing tool with powerful protocol decodes capabilities. It can capture all traffic transport over local network segment and decodes all major and frequently used protocols including TCP/IP, UDP, HTTP, HTTPS, SMTP, POP3, TELNET, FTP, etc. All information is displayed...
- Software downloads 2008-11-13
- SPAM and the free lunch
- SPAM and the free lunchSIMPLE SOLUTION: Mandatory email server registration!(1) Get rid of "Reply-to:" tags.(2) Mandatory email server registration using credit cards, at yearly rate $2~3 dollars.This will make spammers impossible to operate without being caught.What SPAM is that?During the height of the "bad old days" of spam, I got...
- Discussion threads 2008-11-10
- Research on Packet Filter Rules of the Firewall Based on Visual Prolog
- The packet filter rules of firewall are established according to the needs of network security, while to manage filter rules becomes more and more complicated, and easy to make mistakes, especially in enterprise network. In order to implement correct policies, the firewall filter rules should be checked and organized carefully....
- White papers 2008-10-18
- Airscanner Security Combo for WM5/WM6 (Mobile)
- For a limited time only...this value bundle brings you Airscanner's two most popular products: the Award winning Antivirus and the latest version of our Firewall...all with one big discount! These are our recommended programs for the security conscious mobile user.Antivirus DescriptionProtect your phone or PDA from wireless airborne viruses! The...
- Software downloads 2008-09-23
- Comcast submits plan to limit heavy users
- Comcast submits plan to limit heavy users"Second Stream", or Setting Up the "2-Tiering" Stage?"Comcast will do this by creating a second stream of traffic for recent heavy users that will have a lower priority when compared to its other customers..."The new scheme would seem to be a lot fairer than...
- Discussion threads 2008-09-22
- Analyzing TCP/IP Networks with Wireshark
- View Available Dates and LocationsIn this lab-based course, you will discover effective Wireshark operations and packet-level TCP/IP communications by examining both properly and poorly performing networks as you prepare for the Wireshark Certification Exam. Spend half your class time learning the features of Wireshark, the world's most popular analyzer. After...
- Training 2008-09-01
- No penalties for colleges that don't enforce anti-P2P
- No penalties for colleges that don't enforce anti-P2PSlippery Slope argumentationYep, once they have the monitoring laws in place, next they will want to monitor a whole lot more. It is a trojan horse, but then Joe McCarthy isn't too far away in US history.Of course, Good ol' Joe needed a...
- Discussion threads 2008-08-04
- Network Traffic Monitor Analysis Report 6.8 (Windows)
- Network Packet Analyzer CAPSA enterprise edition is an advanced network traffic monitoring, analysis and reporting. It works in all Windows based operating systems. It captures all traffic transport over both Ethernet and WLAN networks. Network Packet Analyzer decodes all major TCP/IP protocols. With Network Packet Analyzer, you can easily filter...
- Software downloads 2008-06-24
- Ipfilter 1 (Windows)
- Ipfilter is an easy-to-use packet filter for TCP/IP. It's features: Block outgoing IP packet based on set of predefined rules. Block incoming IP packet based on set of predefined rules. You can block any UDP, TCP, ICMP packet. And rules are flexible. Version 1 includes unspecified updates.
- Software downloads 2008-06-20
Neighboring Terms
Premier Vendor Content Whitepapers, webcasts & resources from our Power Center Sponsors
- Keep Up With The Latest In Document Management with The DocuMentor.
-
> Doc delivers the scoop on today's enterprise content management, printer maintenance, and all other issues related to document management. It's the DocuMentor Blog.
- Learn more >>
- New Online Dashboard for IT Leaders
-
Read about top issues IT decision-makers face every day, plus get cost-effective solutions to real-life IT problems.
- Learn more >>
- The best support in the Linux business
-
If Linux is going to power your mission-critical applications, you'd better have the best support known to business. Novell was rated the top provider of Linux technical support.
- Learn more >>
- The best support in the Linux business
-
If Linux is going to power your mission-critical applications, you'd better have the best support known to business. Novell was rated the top provider of Linux technical support.
- Learn more >>
SmartPlanet
- Thought-provoking progressive ideas on diverse topics that intersect with technology, business, and life, and matter to the world at large. Visit SmartPlanet
- More from IBM
-
- Can your business work smarter? Learn more about Lotus Symphony
- Learn how to work smarter and optimize cost using the IBM Smart SOA approach Download the eBook
- Smarter ways to make smarter products Read the brief from IBM
